General description Our Pcs Sliding Shower Door Rollers are designed for smooth operation and durability. This kit includes 8 shower door rollers, consisting of 4 upper and 4 lower twin wheels, making it a practical replacement for your bathroom sliding doors. Technical specifications Diameter of each roller: 23 mm Weight: 42 to 45 g Compatible glass thickness: 4 to 6 mm Installation Easy and quick to install Bottom rollers feature a spring-loaded button for easy identification Usage Suitable for most shower cabins, sauna cabins, bathtubs, or massage cabins Allows effortless opening and closing of sliding doors