COVA Magnetic Building Blocks

100 one-inch magnetic cubes that snap together on any side. Build castles, towers, bridges and more.

Ages 6+
Snaps On Any Side
Bright Colors

Rated 4.9 "Excellent" | 6,214+ Reviews

COVA Magnetic Building Blocks box with 100 colorful cubes

A parent and an eight-year-old building a wall and a tower from the cubes at a table

Four face designs: bright colors, wood, stone and water

A hand holding a stack of three one-inch magnetic cubes

What is in the box: 100 one-inch magnetic cubes, plain and patterned faces, a COVA box and a magnet in every cube

30-day money-back guarantee, ships within 24 hours and ages 6+, with the COVA box

89% Sold

See What's Inside

Snaps together on any side
Magnets let each cube connect on any face.
Build up, out and around
Towers, walls and bridges with no extra parts.
Plain and patterned faces
Bright colors plus wood, stone and water.

100 Pieces $24.95 per 100 pieces $24.95~~$34.95~~

200 Pieces $22.47 per 100 pieces $44.95~~$62.95~~Most Popular

300 Pieces $20.98 per 100 pieces $62.95~~$87.95~~Free Shipping

Good choice!

You save $4.95 compared with buying individually

Ready to ship - arrives by October 28

Includes 14 days of COVA Build free, then $9.99/mo. Cancel anytime.

Fall Sale - 28% Off 01HRS 59MINS 59SECS

30-Day Guarantee

Try it for 30 days. Not happy? Get your money back.

4.9

Quick delivery, and the cubes snap together with a solid click. We built the first castle from the app the same evening.

Megan R.

Fast Delivery
Easy To Start

5.0

My daughter is 7 and asks to build every weekend. Towers, walls, a little zoo, she has made them all and the cubes still click together like new.

Daniel K.

Weekend Fun
Family Time

5.0

Packed neatly and arrived early. The 30-day guarantee made it easy to order, and we have not needed it.

Priya S.

Fast Delivery
Money-Back Guarantee

4.9

I bought the 100-piece set, then ordered 200 two weeks later. More cubes means bigger builds, and the new set matched the first one exactly.

Tom H.

Good Value
Will Reorder

Frequently Asked Questions

A set of 100 one-inch magnetic cubes that snap together on any side. They come in plain bright colors and in wood, stone and water designs, in a COVA box.

Yes. Open the box and start building. Every cube snaps onto any other cube, so there are no parts to match up.

A 100-piece set is enough for towers, walls and small castles. Bigger builds need more cubes, so many families choose 200 or 300 pieces. All cubes are identical, so sets combine.

COVA Build is an app for parents with a new illustrated step-by-step build every week. Every order includes it free for 14 days, then it is $9.99 a month. Cancel anytime in your account or by contacting us, and you are not charged if you cancel during the trial.

Most cubes are plain bright colors: red, yellow, blue, green and orange. Others show wood, stone or water designs.

Ages 6 and up, with an adult nearby. The set is not for children under 6.

Each cube contains a magnet. Keep the set away from small children and pets. If a magnet is swallowed, get medical help at once. After every play session, check the floor and table for loose cubes.

Orders ship within 24 hours. The cart shows your estimated arrival date.

Every order is covered by our 30-day money-back guarantee. If you are not happy, contact us within 30 days and we will refund your order.

Your First 4 Weeks

Week 1: Open the Box

Sort your cubes by color and face
Build your first tower and wall

Week 2: Build Bigger

Try longer walls and taller towers
Mix plain and patterned faces

Week 3: Build a Scene

Make a castle, a zoo or a city
Add wood, stone and water faces

Week 4: Build Together

Take turns adding the next cube
Display your favorite builds

See How Families Build With COVA

A parent and child building with COVA cubes

What's In The Box

Every cube is one inch wide and holds a magnet, so pieces connect on any side. Build up, out and around.

Most cubes are plain bright colors. Others show wood, stone or water designs, so a castle can have stone walls and a moat.

Every set arrives in a blue COVA box. When the build is done, the cubes go back in the box, so storage is easy.

Trusted by thousands of parents

What Parents Love Most

5/5

We build on the living room floor every Sunday now. My two kids take turns picking the next cube, and the tablet stays in the drawer.

Jessica Moore Verified Buyer

5/5

My son and I do a build after dinner. It is the one part of the night we both look forward to.

Dennis Alvarez Verified Buyer

5/5

I bought a set for my niece and nephew. They share it and build together with no arguments. Great gift.

Rachel Kim Verified Buyer

5/5

Clean-up is quick because everything goes back in the box. We use it on rainy afternoons and it has not gotten old.

Samantha Cole Verified Buyer

5/5

The cubes click together with a solid snap and hold even in tall towers. Much better than the cheap set we tried before.

Leah Fischer Verified Buyer

5/5

Strong magnets. My kids build long bridges and nothing pulls apart. We keep the set on a high shelf away from our toddler.

Owen Patel Verified Buyer

5/5

The cubes line up flat and click into place every time. My son builds out sideways and underneath, and the whole thing stays together.

Sofia Ramirez Verified Buyer

5/5

I lifted a long wall off the table to test it and nothing came apart. The magnets are strong, so we keep the set up high and count the cubes after every build.

Paul Weber Verified Buyer

5/5

I love the wood, stone and water faces. The set looks great on the table and the colors are bright.

Marcus Greene Verified Buyer

5/5

Smooth edges, bright colors and fast shipping. The box keeps everything together between builds.

Nina Romano Verified Buyer

5/5

The colors are bright and the wood faces look real. We sort by color first, which my daughter loves doing.

Helen Park Verified Buyer

5/5

I bought it for the stone and water faces. A stone wall with a blue water moat looks great on the shelf.

Kevin Doyle Verified Buyer

How It Works

Open the box, snap the cubes together and start building.

Step 1

Open the Box

Pour out your 100 magnetic cubes. Sort them by color and face design so the pieces are easy to find.

Step 2

Snap Them Together

Press any two cubes together and the magnets pull them in on any side. Build up, out and around with no extra parts.

Step 3

Build Together

Build a tower, a wall or a castle side by side. When you are done, the cubes go back in the box.

Blocks That Won't Stay Together

Ordinary blocks slide and tip as the tower grows. Each COVA cube holds a magnet, so pieces connect on any side and builds stay together.

Colorful cubes scattered across a rug with a half-built tower

Snaps On Any Side
Builds Stay Together
Up, Out And Around
Packs Back In The Box

Why Trust COVA?

100 Cubes In Every Set

Money-Back Guarantee

Fast Shipping

A Magnet In Every Cube
Secure Checkout
30-Day Refund
Smooth Rounded Edges
Ships Within 24 Hours
Made For Ages 6+

Stock up. Save more

Bigger builds need more cubes. Add a set and save more.

Includes 14 days of COVA Build free, then $9.99/mo. Cancel anytime.

What Parents Report

94%

said their child asked to build again the next day

91%

said the set was easy to start building

96%

said the cubes snap together with ease

“We never run out of things to build. Every weekend the kids come up with a new idea.”

Dana K., 36 years

Loose Cubes vs. Snapped Together

See what happens when a heap of loose cubes snaps together on any side and becomes a finished build.

Loose Pieces Scattered Nothing Built Just A Pile Snapped Together Standing Tall Built Together Ready To Play Loose CubesWith COVA

A parent and an eight-year-old building a tall tower and a long wall from cubes on a rug

Your First 4 Weeks

Build a little more each week.

Week 1: Open the Box

Sort your cubes by color and face
Build your first tower and wall

94% of parents built their first tower in the first session

Week 2: Build Bigger

Try longer walls and taller towers
Mix plain and patterned faces

91% of parents built a longer wall by Week 2

Week 3: Build a Scene

Make a castle, a zoo or a city
Add wood, stone and water faces

89% of parents built a full scene by Week 3

Week 4: Build Together

Take turns adding the next cube
Display your favorite builds

95% of parents kept building into a second month

5 Reasons Why Thousands Choose COVA Blocks

100 magnetic cubes that snap on any side.

A sculpture of cubes snapped together at odd angles

Reason 1

Snaps On Every Side

Each one-inch cube holds a magnet, so pieces connect on any side. Build up, out, around and underneath with no extra parts.

One, two and three sets of COVA Magnetic Building Blocks

Reason 2

Grows With Your Builds

All cubes are identical, so sets combine. Start with 100 pieces and add a 200 or 300 piece set when your builds get bigger.

A child placing a cube on a tall tower of cubes while a parent rests a hand on the table

Reason 3

Builds With Your Child

Pour out the cubes, sit down together and build side by side. It is easy to start and easy to put away when you are done.

Cubes in plain colors and wood, stone and water designs

Reason 4

Plain and Patterned Faces

Bright plain colors plus wood, stone and water designs give every build a different look, from castles to gardens.

Reason 5

Backed By A 30-Day Guarantee

Try COVA Magnetic Building Blocks for 30 days. If you are not happy, contact us and we will refund your order.

See the Difference for Yourself

100 cubes that snap on any side
Bright colors plus wood, stone and water
Smooth rounded edges
Packs back into a COVA box

One color, one look
No wood, stone or water faces
Plain silver finish
No storage box

Regular Magnetic Blocks

Frequently Asked Questions

100 one-inch magnetic cubes in plain bright colors plus wood, stone and water designs, in a COVA box.

Each cube holds a magnet, so any face snaps onto any face of another cube. You can build up, out and around with no extra parts.

Yes. All cubes are identical, so a 200 or 300 piece order is simply more cubes for bigger builds, and you can add sets later.

Keep the cubes in the COVA box after each play session, away from small children and pets, and count them to make sure none are missing.

Ages 6 and up, with an adult nearby. The set is not for children under 6.

Each cube contains a magnet. Keep the set away from small children and pets, and do not let children under 6 play with it. If a magnet is swallowed, get medical help at once. After each play session, check the floor and table for loose cubes.

Orders ship within 24 hours. The cart shows your estimated arrival date.

You have 30 days. If you are not happy, contact us and we will refund your order.

Rated 4.9 / 5 | Trusted By 18K+ Customers

Real Builds Start Here

A castle with four towers built from cubes on a living room coffee table

Our Rainy Day Castle

We built this castle on a rainy Saturday and it took the whole afternoon. The kids kept adding towers, and now it sits on our coffee table. The cubes snap together with a solid click.

Lauren Mitchell Verified Customer

A giraffe and an elephant with a pen built from cubes on a rug

Everyone Wants a Turn

I bought the 200-piece set so both kids could build at the same time. They made a giraffe, an elephant and a pen on the living room rug. The cubes feel solid and the colors are bright.

Brian Foster Verified Customer

A skyline of towers built from cubes on a kitchen counter

A Whole Skyline

I ordered the 300-piece set after our first week. We built a skyline of towers on the kitchen island, and every cube clicks in the same way. Everything goes back in the box when we are done.

Natalie Ortiz Verified Customer