3 years & up. This sturdy wooden incline ramp invites children to explore STEM concepts through prediction and experimentation. The six varying textures give children the opportunity to test the effects of surfacing, weight, and velocity on the potential speed and function of different objects. Ramptastic also introduces simple machines to children and is the perfect addition to the STEM toys in your classroom. Activity card(s) included. Cars sold separately. Measures 4.25" H x 4.75" W x 12.5" L.