Born in 1984 under the concept A ROUGH THING THAT WORKS©, a Graw Jump Ramp is what you need to fly higher. Made of plywood wood, strong & lightweight, the Graw Jump Ramps pop up like no other jump ramp. Wood is elastic and offers more flexibility for higher jumps. Their sturdy design comes in different models for skaters of any level. Light and easy-to-carry, they fit everywhere, even on your skateboard. Designed to break down walls & create new lines. It worked in 1984, and still does today.