5 years & up. Your little engineers will love designing and creating their own skatepark with this Skate Park Engineering & Design Set by Learning Resources. Use the activity cards to complete design challenges or let your imagination run wild and create your own crazy ramps and jumps that will send your skater flying. The perfect set to encourage early STEM learning. Longest ramp measures 10" x 2". Included: 43 Easy-to-assemble pieces: Flag, building pieces, 1 figure with a skateboard, ramps, cones, and more, Activity cards.