Replacement Shower Door Roller\n Description:\n--4 wheels.\n--100% brand new and high quality.\n \nSpecifications:\n-- A  - Wheel diameter: 20mm.\n-- B  - Wheel thickness: 5mm.\n-- C  - Protruding boss diameter: 9mm.\n-- D  - Protruding boss height: 7mm.\n-- E  - Hole diameter: 4mm (M4).\n\n \nMaterials: \n--304 stainless steel micro-bearing.\n--POM.\n--Nylon outer wheel.\n Postage to UK mainland and worldwide.\n \nIf you still cannot find the part you are looking for or need to ask any additional questions please contact us.\n\nAbout us\nWe are a small, friendly team of 5 based in a brand new purpose built unit in Cornwall, UK. The business has been running since 2004. We stock brand new shower rollers, wheels, handles and other shower parts. We pride ourselves on our excellent customer service, speedy delivery and offering the best advice we can inc.