Metal window and door pulley wheels designed for reliable sliding operation Key benefits Smooth, lowfriction operation: nylon roller combined with double bearings reduces resistance and noise for easier sliding. Durable and long lasting: metal construction and practical design withstand regular use and resist wear. Ergonomic and laborsaving: the pulley design makes opening and closing windows or doors easier and requires less effort. Simple to use and : compatible with common window and sliding door pulley assemblies for straightforward maintenance. Features Material: robust metal body for strength and durability. Roller: nylon roller resists wear and prevents marring of tracks. Bearings: double bearings for stable rotation, reduced wobble, and improved load distribution. Function: designed as window roller wheels and door pulley wheels for sliding windows and doors. Typical applications worn rollers on sliding window sashes to restore smooth, quiet operation. Retrofit or patio or sliding doors where durable, lowfriction pulley wheels are needed. Service wardrobe or interior sliding doors that use similar window/door pulley assemblies. What to expect Improved sliding performance and reduced effort when opening or closing. Longer service life compared with singlebearing or nonnylon rollers. Straightforward installation into standard pulley housings without special tools in most cases. Compatibility and notes Intended for use as window pulley, window roller wheel, door roller, and door pulley wheels in compatible sliding assemblies. Verify existing pulley size and mounting style before to ensure a proper fit.