Keep your child active and healthy with the Upper Bounce 15 ft. Trampoline Jumping Mat. This trampoline ensures durability as it is made up of a tough material called polypropylene, a heavy duty fabric that is also fade-resistant. The trampolines special design provides ample room for enjoyment, making your childs play-time even more full of fun. * Round shape * Black color * Made of heavy duty polypropylene * Made for a 180 inches trampoline * 96 v-rings for 6.5 and 7 inches springs