Our ASTM approved trampoline features curved net poles which create ample safety space to avoid injury. Also,the springs are covered with safety pad so that kids will not hurt their feet if step on. The enclosure net is made of high density and tear resistant PE,and its connection between net poles is well assured. You will enjoy deep bouncing and fast rebound thanks to the high resilient jumping mat and springs. The overall frame is made of double-sided galvanized steel pipes and the leg tubes are added with paint coating. Note: the whole set will be delivered in 2 (8 FT) boxes and you may receive them at different time.