25mm Shower Door Rollers: Replace old rusty rollers to repair your glass door and continue to slide smoothly. Size: The shower roller diameter is 25mm, thickness is 5.55mm. Total length: about 32mm. Requires glass door hole with diameter 10-12mm and thickness 6mm. And the screw is M6 and its length is 14mm. Please check the diameter of your old shower rollers and the thickness of your glass door before purchasing. Material: Made of nylon and copper. Ensure good elasticity, good wear resistance. Compatibility: For shower doors and massage cabins, bathtubs, hot tubs or other furniture. Note: Before installing the shower door rollers, please apply silicone grease (not included) to the surface of the glass door rollers to extend their service life. Product Description Shower door rollers replacement rollers Replace a broken bearing. Shower door track guides come with screw covers. Spring mechanism, also compatible with curved doors. With screws and plastic covers Single shower door