Ningbo Shengtong Sports Products Industrial Corp. Was established in 1990, we are a professional manufacturer who are specialized in various trampoline products. At present our trampoline sizes are 6ft, 8ft, 10ft, 12ft, 13ft, 14ft and 15ft, and for each size we have 3 quality levels for your choice: AMUSING, TRAINING and FLYING. Meantime we can also supply various trampoline accessories, like Safety Enclosure, PE/PVC Weather Cover, Ladder, Fix-Kit, Spring Tool and Sundries Bag etc. All these items we have GS/TUV certificate and passed EN-71 testing. For your reference, I can even send you a colorful e-catalogue by e-mail, you may find the detailed specifications of tube, pad and springs etc. In my catalogue. Any inquiry from you will be paid highly attention. Pls rest assured I will try to offer you the products of best quality and competitive price. Sincerely hope we may cooperate in the near future.