Features for round Trampoline 1) Trampoline standard size:5FT,6FT,7FT,8FT,10FT,12FT,13FT,14FT,15FT,16FT 2) Frame tube and leg tube: Steel tube galvanized both inside and outside 3) Heavy-duty galvanized spring 4) Jumping mat: UV PP 5) Spring Cover Pad: Waterproof and UV resistant 6) Pole tube: Steel tube galvanized both inside and outside 7) Easy to assemble 8) Certificate: TUV/GS certificate and CE certificate available We are the professional manufacturer of various kinds of trampolines in China.The products are fashionable and stylish, we choose the finest materials,exquisite workmanship, and material characteristics of excellent low-cost, and won recognition and praise. And we will offer you the best service and the most competitive and reasonable price. If you have any problem and confusion, please contact us now! We are here for you!