MindWare KEVA Structures 600 Plank Wooden Building Blocks Set - Free-Form 3D Structure Building Set for Kids – Includes 600 Pine KEVA Planks, 30 Idea Cards and Collapsible Storage Bin - Ages 5 and Up Wooden Building Toys That Teach: Builders gain first-hand experience with balance, leverage, geometry and the principles of physics with these STEM planks that make a great addition to STEM toys and learning resources Architecture for Kids Set: Build an entire city or an enormous sky scraper; create castles complete with stairs and turrets; construct a ball run with slides, black holes, bounce plates and more; the sky’s the limit with these KEVA blocks Quality Plank Building Block Set: The large wooden blocks in this planks building toy not only feature beautiful maple wood grain but are tough, durable and stack perfectly time after time No Hassle Premium KEVA Blocks: With no glue or connectors needed, these wooden building planks are ready to play right out of the box; simply unpack these wooden planks for building and get started