... 2.material:rubber,steel 3.roller bearings Europe type fixed industrial rubber caster Item numberplate finishwheel diameter(mm ... , size of diameter and Attachment can be customized«»Fixed,With or Without Brake. »Can have Screw,stem ... material: 2.size: 3.color: 4.mounting ways(fixed,plate,thread,bolt hole) 5.quantity: 6.surface ... suitable wheels and casters. Europe type fixed industrial rubber caster