Quiet nylon rollerOur wheel is equipped with quiet nylon wheels, no scratches on the sliding, soft and stable. You can open and close the door comfortably and quietly. High Quality MaterialSliding door roller made of high-strength nylon, high-speed bearing and aluminum base plate. high quality alloy. The surface is coated with multiple layers of baking paint, thick and not easy to rust, wear-resistant and durable for long-term use. Adjustable height Retractable top wheel is convenient for installing door shutters, height adjustable suitable for a variety of interior doors and windows. Cylindrical catheter, horizontal rotation structure, slides smoothly without jamming. Scope of delivery2 sets of heavy-duty sliding door rollers measuring 85 x 45 mm in the dimension sliding door fittings. Classic design with black and white color that will perfectly match your doors and windows. It is recommended to install 2-4 pulleys per cabinet door. Multiple ApplicationsVersatile sliding wheels ideal for cabinets, windows, closets, cabinets , display cases, etc. Mute Sliding door wheel for wardrobe Fluid nylon wheels allow you to open and close the door easily and quietly. Premium quality nylon and alloy ensure excellent performance even after prolonged use. Automatically cleans and refuses dust accumulation and stagnant, which effectively prevents dust from entering and is more durable. Product Features : Materials: nylon and alloy. Wheel diameter: 30 mm. < /p> Dimensions of the mounting plate: 85 x 45 mm. Diameter of the hole: 6 mm. Color: black. Contents: Set of 2 rollers for sliding door