10PCS Sliding Door Roller Cabinet Copper Caster Wheel Pulley for Wardrobe Furniture Door Window Accessories Width 7.5mm Features: Material: Made of high-quality plastic + copper, strong and durable. Carrying capacity: durable and load-bearing. Suitable for furniture, hardware accessories, mobile door, glass sliding door, aluminum door and window, shower pulley and drawers, etc,smooth operate. Rustproof and corrosion resistance, durable. Package Includes: 10 pieces of window Specifications Material: Copper+Plastic Weight: 30g Size: As picture shows Package Includes: 10x Sliding Door Pulleys note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.