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) The simplicity of KEVA planks allows limitless possibilities! With KEVA, every piece is precision-milled, so they are all exactly the same and stack with unbelievable stability. Teachable Moments KEVA teaches a basic understanding of physics and engineering concepts. Physically handling the blocks builds a fundamental understanding of quantities, equality, geometry, balance and design. Each kit includes an idea book with concepts to stimulate builders. Easy to Use No glue or connectors required! Simply stack the solid KEVA planks to create buildings, monuments and geometric forms. All Ages Loved by boys and girls as young as 5 and as old as 100. All KEVA kits are compatible! KEVA is simple enough for easy builds and more complex designs. Adults can't resist getting in on the fun! Children of all ages can be challenged and successful when building with KEVA planks—it is the perfect family activity! Purposeful Play The KEVA Educator's Manual is loaded with lesson plans and classroom activities, and each kit's included guides shows you how to add a hands-on component to math, science, reading, social studies, and other subjects.