High quality material. fit different kinds of showers.Ensure your doors the most comfortable glide. There is replacement shower door roller which will fix for you any sliding system in your home. Shower Door Runners for showers massage cabins, bathtubs, whirlpool and even for furniture fittings. Make sure with our runners the door or the doors slide open easily and smoothly. Replace your broken system high quality Shower Enclosure Rollers. Steel part of the wheel: 8mm diameter, hole diameter 4mm, wheel diameter: 26mm.