Pure Fun 38-inch Exercise Trampoline 38-inch jumping surface provides plenty of space to safely bounce 32 sturdy 2.75-inch galvanized steel springs for superior bouncing Exterior trampoline pad is cushioned to avoid injuries when bouncing Jump mat made of heavy-duty polypropylene to ensure durability ASTM, TUV/GS and CE Certified Weight Limit: 250 lbs Size: 38&#034;x38&#034;x8.5&#034; Weight Limit: 250 lbs.. Recommended Ages: 13+. ASTM:  SHAH00591047  U.S ASTM F2276-2010 , by Intertek Authority, 2015