These foldable, portable ramps are easy to store. The steel frames deliver superior strength for heavy use by skaters and BMX riders. The durable weatherproof Urethane/ABS riding surface will not rot, warp or swell like wood. Virtually indestructible, these ramps will not weather or break down when exposed to the outside elements. The 4' quarter pipe sets up in minutes and connects side-by-side and back-to-back. It attaches to other Freshpark ramps and folds into a 20” x 20” x 47” triangle; detachable wheels make it portable and easy to store.