ATU1422 Features: Uberdragon Perfect example of why the uberstix build system is so special Frog leaps, the crab's legs move, the dragon slithers, and the bird and bat's wings flap Animals are much more than stationary models Teaches youngsters about the workings of movable joints Appropriate to engineer creation with moveable, as opposed to non-movable, connections Movable joints Machines lesson plan 68 pieces kit Great for home or the classroom Ages 6 and up Construction: Integrates with all existing construction systems on the market Dimensions: Overall dimensions: 4' H x 12'' W x 2'' D Collection: Part of Uberstix collection