Certified by ASTM,our trampoline is surely a reliable choice for you and your family. Comparing to those trampolines with straight poles,our trampoline with curved poles features ample safety space between the net and poles,protecting kids from getting injured in case of falling. The safety pad and enclosure net offer complete safety protection during jumping. And the non-slip ladder is safe to climb and the entrance is designed with safety buckles and double-headed zippers to prevent accidental opening. Constructed with hot-dip and double-side galvanized steel pipes,this trampoline features outstanding wear and rust resistance,which is capable of long lasting outdoor use.