Keva: Contraptions Reactions Toys Turn curiosity about mystery and

Turn curiosity about mystery and logic into an engaging challenge that brings reasoning and adventure together for an exciting game night experience

Roger Tory Peterson's unique system shows exactly what features to look for to tell one species from another

or layer during cooler months

approximately 1 inch for small and nearly 2 inches in diameter for large

and the work of scientists in the field

Keva: Contraptions Reactions Toys Turn curiosity about mystery andGet the fun rolling with this unique set that includes traditional KEVA planks, special colored planks and a variety of unique pieces to set off chain reactions. Builders can set up their contraptions to cause reactions like ringing a bell, knocking over a bowling pin and more. Build a course and see if the pieces react as you predict!