Sliding roller Material:iron,nylon Finishing:plating,spray-painting Colour:sliver(plating),according to customer requsted Roller, wheel, window roller, window wheel, ... .6.surface treatments:powder-coated (silver, white, black etc.) or plating (imitation gold,chrome,nikel)7.Loading capacity:75kg.8.packing ... are interested in our products ,plz do not hesitate to contact us . Iron Sliding roller