25mm Shower Door Rollers: Replace old rusty rollers to repair your glass door and continue to slide smoothly. Size: The diameter of the shower roller is 25mm. Compatibility: For shower doors and massage cabins, bathtubs, hot tubs or other furniture. Tips: Before installing the shower door rollers, please apply silicone grease (package not included) to the surface of the glass door rollers to extend their service life. Note: The data is all measured manually, please allow 1-3 cm error. Due to differences in light and display, there may be color differences. Please refer to the actual item received.