Detailed Product Description big trampolineoutdoor trampolineround trampolineSprings:Material of springs: steelNumber of springs: 48pcs, 64pcs, 72pcs, 80pcs, 88pcsDiameter of wire for springs: 3.2mmNumber of spring stitches: 30N/41N/53NMaterial of triangle loops: SteelNumber of triangle loops: 48pcs, 64pcs, 72pcs, 80pcs, 88pcsDiameter of wire loops: 5mmFrame Material: steelType of coating: ...