... .5mm 2.color of pad:blue 3.Material of triangle loops:steel Diameter: 8ft., 10ft., 12ft., 13ft. 14ft.Springs:Material of ... : 30N/41N/53NMaterial of triangle loops: SteelNumber of triangle loops: 48pcs, 64pcs, 72pcs, 80pcs, 88pcsDiameter of wire loops: 5mmFrame Material: steelType of coating ...