Freshpark launch ramp the ultimate launch ramp is curved for a smooth transition and taller jumps skate it by itself or connect it to the freshpark fun boxes wedge ramps grind rails or other launch ramps foldable portable durable weatherproof modularinterlocking multiple configurations product specs size 37 l x 47 w x 16 h weight 69 lbs maximum weight 500 lbs folds in half and stacks flat