1) TUV/GS certificate 2) Main material from USA 3) All tubes are hot galvanized 4) Special and Extra safty net&mat Trampoline:1) Steel Tubes: Q195, hot dip galvanized inside & outside, 120g/m2 zinc coating (Including W-Leg, Leg-Extension, Top Rail, Net Poles)2) Jumping Mat: 280g/m2, woven fabric with PP(polypropylene) filament,UV-resistant, Fade-resistant, heavy duty. (Customized Logo on centre ...