The sliding door and window pulley is an essential component for ensuring smooth and effortless operation of your sliding doors and windows. Ideal for use in patio doors, closet doors, and sliding windows, this pulley system allows for easy opening and closing. Simply install the pulley on the track, and , movement of your doors and windows. Features -Color:Silver -Material:Cold Rolled Steel -Size:4.20X1.00X0.70cm/1.65X0.39X0.28in -Note: Wheel diameter: 10mm; Hole diameter: 4mm; Hole distance: 30mm -Strong load capacity: the sliding door track replacement boasts a robust loadbearing capacity, ensuring durability and performance -Smooth operation: the sliding roller pulley design allows for effortless and smooth sliding, making it easy to open and close doors and windows -Silent design: equipped with sturdy materials, this product ensures quiet operation, providing a peaceful environment without disturbing your rest -Versatile application: suitable for windows, doors, cabinets, and drawers, offering a wide range of uses for various projects -Enhanced ventilation: ideal for different types of windows and doors, this product helps improve ventilation and air circulation in your living spaces Package list: 6 x window screen pulley