Features: Experience unparalleled durability with our Push Pull Sliding Window Rollers, crafted from robusts brass and aluminum for long service window hardware performances. Each metal wheel is meticulously designs to provide a wear resistant, smooth glides with its universal sliding axles, ensuring your window, cabinets, and door operate seamlessly. Suitable for homeowners, enthusiasts, and professional installers, these single rollers are the perfect upgrades for anyone seek reliable window pulley solution. Transform your living space or workshop with ease; these sliding rollers are suitable for a variety of applications, from home window repairs to cabinet and door installations. Elevates the functionality of your projects with these metal Wheel, offering a quiet and stable movement that enhances any renovations or repair task. Specifications: Material: brass+aluminum Size: about 64x14mm Type: Flat wheel/Grooved wheel(optional) Package Includes: 4xWindow Roller Wheel note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.