... .size:75mm-125mm 3.Stem Dia 21mm*H 48mm scaffold construction&real estate caster wheel with brake zinc plated finished to resist dent ... to your requirementMaterialpu,steel finishingZinc plate finish/chromeFeaturescaffording industrial caster,construction casterColorgreyMounting waysthreadMounting sizeDia 21mm*H 48mmcapacity100kgsUseagescaffolding caster,material handling equipment ...