Jumping Surface for 12' Trampolines with 72 V-Rings for 7" SpringsTMRD124-72,ST Features: -Jumping surface. -Material: Polypropylene. -Super heavy duty. -Made in the USA. Product Type: -Jumping Surface. Color: -Black. Trampoline Size: -10' - 12'. Country of Manufacture: -United States. Dimensions: Overall Height - Top to Bottom: -22". Overall Width..