Gdqlcnxb Shower Door Rollers, Roller Diameter 25Mm, Bathroom Glass, 4 Pc.. Features 1.Strong Load-bearing capacity?Bold copper shaft is more load-bearing 2.Ultra-quiet?Built-in smooth ball, sliding silent, smooth and powerful 3.Smooth:The upper rail is evenly stressed, stable and smoothly pushed and pulled; the lower rail slides smoothly, labor-saving and safe to use Installation steps 1.Take the glass door out of the track 2.Unscrew the fixing screws and remove the old pulley 3.Install the pulley on the glass door, fix it with screws, and then install the screw cover Quality Guarantee: If there is any quality problem, please feel free to contact us. Refund or Replacement for any quality problem. Packing: 4PCS x Shower Door Rollers Material: Copper + stainless steel + nylon, bold copper shaft, wear-resistant, no rust and anti-corrosion, this gives the product more durability and longer service life Size: 25mm diameter shower door rollers,designed to suit 4-6mm thickness glass doors. Installation aperture 10-12mm available Features: Strong Load-bearing capacity, ultra-quiet,stable push and pull smoothly,less effort and safe to use Application: Suitable for most shower enclosures, shower cabins and steam cabin enclosures.