- Simple, practical design: a compact belt pulley that functions as a window sash wheel and a sliding door roller, delivering reliable performance in track systems. - Durable material: made from hard-wearing material that resists deformation under normal wear, suitable for glass sliding doors and cabinet/wardrobe sliding door applications. - Versatile compatibility: commonly used in doors and windows to drive mechanical components; can be installed as a door glide wheel, pulley, or sliding window runner. - Easy installation: straightforward mounting and removal with a simple application method, enabling effortless use of the belt pulley, glide wheel, and sliding-window roller. - Use scenarios: 1) Replace worn sash wheels in glass sliding doors to restore smooth operation. 2) Upgrade sliding wardrobe or cabinet doors for quieter, smoother motion. 3) Serve as a compact drive pulley in DIY sliding-mechanism projects.