B - Wheel thickness: 5mm. D - Protruding boss height: 3mm. Materials: 304 stainless steel micro-bearing. Nylon outer wheel. Stainless steel screw (M4). 4 x Shower Door Rollers. Multi-functional small rollers.
4X Replacement Shower Door Rollers/Runners/Wheels Grooved 19mm Diameter
4X Replacement Shower Door Rollers/Runners/Wheels 19mm Diameter
4X Replacement Shower Door Rollers/Runners/Wheels 19Mm Diameter
