Strong steel ,better stitching, large triangles, tougher springs, thicker safety pads TUV-GS,CE,EN71,EN3219 and RECH approval Our trampoline is featured by using more durable material and the big round shape style is also the perfect design for the beginner.Detailed Description:Strong galvanized steels built up to be a stable frame, rust-resistant and weather-proof which can remain to use for ...