10Pcs/Set Door Casters Rolls Heavy Duty Mute Plastic Sliding DoorOOTDTY Features: Material: made of high quality plastic + copper, strong and durable. Load capacity: durable and load-bearing. Suitable for furniture, hardware accessories, mobile doors, glass sliding doors, aluminum doors and windows, pulley and shower drawers, etc., smoothly running. Rust and corrosion resistance, durable. Package Included: 10pcs Window WheelsSpecification: Material: Copper+PlasticWeight: 30g Size: As the picture showsPackage Included: 10 Fold Sliding Door PulleysNote: 1. Please allow 1-2cm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.