{"product_id":"mindware-keva-contraptions-reactions-planks-178-planks-191-piece-free-form-ball-maze-set-ages-7","title":"MindWare KEVA Contraptions Reactions Planks – 178 Planks, 191-Piece Free-Form Ball Maze Set (Ages 7+)","description":"\u003ch2\u003eUnlock creative engineering with MindWare KEVA Contraptions Reactions\u003c\/h2\u003e\n\u003cp\u003eMindWare KEVA Contraptions Reactions is a versatile wood-building set designed to spark curiosity and tactile experimentation. With a base of 178 KEVA planks and a total of 191 pieces, kids and curious makers can craft free-form ball mazes, tunnels, ramps, and more. The blocks are smooth, sanded to a natural finish, and engineered for clean stacking—no glue or connectors required—so ideas can be tested and reconfigured in minutes. The included color accents and special pieces invite one-of-a-kind designs, while the compact illustrated idea book provides a gentle nudge for new challenges.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes KEVA Contraptions Reactions unique\u003c\/h3\u003e\n\u003cp\u003eThese blocks blend physical play with foundational concepts. As brains, hands, and eyes coordinate, children explore balance, leverage, and geometry in a hands-on way. The set invites architecture-inspired play that can evolve from simple towers to more intricate ball runs, where motion and timing become part of the design story.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003ePrecise, glue-free wooden planks that stack cleanly for stable builds.\u003c\/li\u003e\n\u003cli\u003eColorful building pieces and distinctive parts that enable custom ball-run creations.\u003c\/li\u003e\n\u003cli\u003eInclusion of a marble-run vibe with tunnels, ramps, and interactive pathdrops.\u003c\/li\u003e\n\u003cli\u003ePieces to spark chain reactions, including reaction balls, a bell, and a bowling pin.\u003c\/li\u003e\n\u003cli\u003eAdditional props: a string and a toy car to expand play scenarios.\u003c\/li\u003e\n\u003cli\u003e16-page illustrated idea book that motivates new projects and design exploration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHands-on play ideas and real-life use cases\u003c\/h3\u003e\n\u003cp\u003eLet imagination lead: start with a simple ramp, test how the marble travels, then add arches and tunnels to intensify the run. Invite a friend to build side-by-side and compare pathways, or stage a small competition to see which path triggers the bell first. The included pieces provide props for storytelling, timing challenges, and collaborative building sessions that blend creativity with critical thinking.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eBuild a ball maze that demonstrates cause-and-effect and timing.\u003c\/li\u003e\n\u003cli\u003eExperiment with balance by stacking towers that tilt yet stay steady.\u003c\/li\u003e\n\u003cli\u003eCreate a compact demonstration of gravity, momentum, and leverage through playful design.\u003c\/li\u003e\n\u003cli\u003eShare challenges with friends or family to foster teamwork and communication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDesigned for ages 7 and up, KEVA Contraptions Reactions supports independent exploration as well as group projects. The smooth wood, thoughtful tolerances, and straightforward, glue-free assembly invite ongoing tinkering without pressure. While results vary, the system reveals how small changes in order or angle can alter a path, opening doors to endless play possibilities that combine creativity, engineering mindset, and storytelling.\u003c\/p\u003e\n\n\u003ch3\u003eTakeaway\u003c\/h3\u003e\n\u003cp\u003eWhether you're encouraging STEM curiosity, hunting for a hands-on family activity, or looking for a durable, reconfigurable building set, KEVA Contraptions Reactions offers a flexible sandbox for playful experimentation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What ages is the KEVA Contraptions Reactions kit designed for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Ages 7 and up, with scalable challenges from beginner builds to more complex configurations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in this kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: 178 KEVA planks, 8 dowels, 2 reaction balls, 1 bell, 1 string, 1 bowling pin, 1 toy car, plus a 16-page idea book.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MindWare","offers":[{"title":"Default Title","offer_id":46526455447751,"sku":"B09J69CHVP","price":79.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2355\/7319\/files\/mindware-keva-contraptions-planks.jpg?v=1778426540","url":"https:\/\/toyterrax.com\/products\/mindware-keva-contraptions-reactions-planks-178-planks-191-piece-free-form-ball-maze-set-ages-7","provider":"ToyTerrax","version":"1.0","type":"link"}