Balancing Pterosaur Defy gravity with prehistoric precision! This colorful pterosaur seems to float in midair while balancing perfectly on the tip of your finger or its included stand. A fun and simple way to demonstrate the concept of center of gravity, this prehistoric flyer is both entertaining and educational. Teaches the concept of center of gravity in a hands-on way Balances on a fingertip or included stand Brightly colored and great for display Recommended for ages 5 and up Only sold in increments of 12 (case pack of 12) A great addition to any science center, classroom, or dino-themed gift display!