... belt ,support belt,safety support belt,back support,back protector,back guard,safety belt,DYW01 back support belt ,support belt,safety support belt,back support,back protector,back guard,safety belt ... elastic suspenders.4pcs plastic connected between belt and suspenders.the material is polyoxymethylene. ... stay center back material is PP.Six Size:X Small (28" - 32") Small (32" - 36") Medium (36" - 40 ...