Kids take their imaginations for a ride with these pocket-sized, transportation-themed builders! The set includes 4 different vehicles, each made up of 3 durable plastic pieces that lock together—for a frustration-free way to develop fine motor skills. Children match the pieces to build a realistic space shuttle, boat, pickup truck and fire engine...or mix them up to invent their very own vehicles! Space shuttle measures 3 1/2" in length.