This set is the perfect opportunity to integrate STEM into the classroom. Our two 12" L. x 6" W. hardwood ramps have removable, textured coverings that are 18" L. and attach with hook & loop fasteners. Students can test their theories on speed, height and weight while fostering collaboration and problem solving strategies. The included accessory set includes 2 wooden cars, 2 plastic cane rings, and 2 weighted rubber baseballs, Colors may vary.