Shower Rollers For Curved Doors Willstar 4 Pcs Zinc Alloy Shower Door Twin Rollers Set 2 Upper And 2 Shower Roller Wheels Supplied with polished chrome effect coating, 4 springs and 4 screws. Features: · SIZE: Roller diameter 19mm. · SHOWER DOOR WHEELS: Includes 1 pack of 4 wheels with the installation screws. · EASY TO INSTALL: Easily install these... Excellent quality for 6mm Glass thickness. FHC | Premium Series - Sliding Shower Door Systems - Shower Hardware | Frameless Hardware Company suitable for many different makes with glass hole less than 18mm from the hole center to edge of glass Spring loaded - fitted on the bottom of the shower door Set of 4 Shower door Lower Hooks / rollers AM16-4 Set of 4 Single Shower Door Hooks, Replacement Hooks, Bottom Hook/Chrome Coated Excellent quality! 6mm thick to suit curved shower and quadrant showers. Suitable for different models of glass doors, with hole less than 18mm, from the center of the hole to the edge of the glass.