GYMAX Trampoline, 12FT ASTM Approved Recreational Trampoline with Enclosure, Ladder & Galvanized Steel FrameASTM Approval: All our trampolines have been tested for safety and quality, and meet ASTM standards, offering a reliable jumping experience for your kids. Safety Is Our First Priority: This trampoline features curved poles to protect kids from getting injured, and the 10 mm foam cover can reduce impact if kids hit the poles. The safety pad covers springs in case of stepping on them. Our ladder is built with 2 wide and non slip steps for better access.