Discount Ramps SK-904-R Black 12" High Skateboard Launch Ramp Great for skateboarding, BMX, inline skating, Sand boarding, snow boarding, RC cars, and more Durable, single piece molded plastic with textured surface for added Traction during launch 2 rear mounting points on each ramp Must be mounted in place for optimal performance and safety (mounting screws included) Maximum capacity of 250 lbs