This 36 inch small trampoline is ideal for both children and adults. It can provide a great way to keep fit and lots of fun. It helps to improve your coordination,Website:://.jstrampoline.com, balance and agility, trims and shapes your legs, and burn calories while improving your cardiovascular and aerobic fitnessPlace of Origin: Zhejiang, China (Mainland)Size: 36 InchFrame Height: 21 cm6 legs30 pcs Springs25×25×1.0 mm steel tube, galvanized inside and outsidePVC pad with foamPacking Szie: 83 * 5.5 * 83 cm (6.5/7.5KG)Optional Size: 36 inch, 38 inch, 40 inch, 48 inchTrampoline:1) Steel Tubes: Q195, hot dip galvanized inside