MindWare KEVA Contraptions Reactions Planks Building Toy - 178 KEVA Building Planks (191 Piece Set) - Free-Form Wood Building Set for Kids to Create Their Own Ball Maze – Ages 7 & Up
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Returnable until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Saturday, Jun 13
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Features
- STEM Toys That Teach: These KEVA blocks help kids gain first-hand experience with balance, leverage, geometry and the principles of physics while fostering an interest in architecture and design
- Create Chain Reactions: Use the wooden building planks to build a marble run full of tunnels, ramps and other contraptions, then see if your KEVA ball sets off chain reactions like knocking over a bowling pin or ringing a bell
- Unique Plank Building Block Set: This wood building set features traditional KEVA planks along with colored building planks and unique pieces to create one-of-a-kind KEVA ball run structures
- No Hassle: These premium KEVA STEM planks are precision-cut from beautiful wood to stack perfectly time after time, no glue or connectors needed; simply unpack and build impressive KEVA structures
- KEVA Contraptions Reactions includes 178 wooden planks for building, 8 dowels, 2 reaction balls, 1 bell, 1 string, 1 bowling pin, 1 toy car and a 16-page illustrated idea book (Ages 7 and up)
Package Dimensions: 14.72 x 9.69 x 3.39 inches
Item Weight: 5.13 pounds
Manufacturer recommended age: 8 years and up
Manufacturer: MindWare
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Jun 13
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
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Top Amazon Reviews
My 11 year old started building these blocks at his school and I decided to get him a set for his birthday. He is having so much fun with it. And I am glad it keeps him away from tv. Quality is great, it can be used in so many different constructions. Totally worth the price.
Reviewed in the United States on October 1, 2024 by Viktoria
Was given as a gift. He loved building and creating with it. It has a lot of materials in a small box. Was surprised when he created a domino run almost 12 feet long.
Reviewed in the United States on December 14, 2025 by K
Why did you pick this product vs others?: Requested by 6-year old Grandson. He and his Dad have been working on it together. They've been having a lot of fun with it. He's beginning to build it on his own now.
Reviewed in the United States on June 21, 2025 by Amazon Customer
Good quality and keeps him busy
Reviewed in the United States on February 15, 2023 by Lea Brown
Great for imaginations! Can be a little difficult to build so you need steady hands, I would say older kids 5/6 years +
Reviewed in the United States on November 7, 2024 by creativeusername
This is the second Keva plank set we have bought. My son constantly builds towers with these planks. He’s not that interested in building what’s recommended in the manuals yet. He let’s his creativity flow with these. Our whole family will work with these and it’s rare to find something everyone can enjoy.
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Reviewed in the United States on December 29, 2023 by Emily Bravo
Six year old grandson loved this gift; provided lots of creativity
Reviewed in the United States on December 31, 2023 by Mary
I bought this for my classroom, I teach science and engineering, it looked so cool in the picture however my students find it hard to build things that stay together and they are easily bored by it. The quality however is excellent. Maybe someone older than 9 and 10-year-olds would like it better.
Reviewed in the United States on September 8, 2023 by Rosalie M. Ruell