Outdoor caster wheel for the luggage 1).Material:plastic PU,PC 2 ... USD0.5 pcs 4)OEM Light duty caster wheel Material:Plastic PU,PCColor:BlackSpecification:The wheel's diameter is about 4-5cm (can ... be customized)Technics: The wheel is made of plastic PC,PU and the stainless steel ... class quality products, reasonable prices and remarkable services. Outdoor caster wheel for the luggage