1.Material: polyurethane/plastic/pvc/rubber 2,Load capacity :40-135kg 3.full double beraring raceway 4.full/unilateral brake caster wheel(polyurethane)light duty1.Material: polyurethane/plastic/pvc/rubber2,Load capacity :40-135kg3.full double beraring raceway4.full/unilateral brake5.zinc plated. Large single raceways deeply embossed for extra strength.6. OEM according to customer's requirement. ...