General description The Shower Door Roller set includes 4 twin rollers designed for smooth operation of shower doors. Made from high-quality materials, these rollers are built to last and are suitable for various shower enclosures. Technical specifications Material: Zinc alloy, brass, nylon Roller diameter: 23mm Glass door thickness compatibility: 4-6mm Glass open hole size: 12-14mm Compatibility and accessories Includes 4 twin shower door rollers (2 top and 2 bottom) Comes with 4 rubber anti-collision blocks Includes 4 screws for installation Usage Designed for smooth operation of shower doors, whether straight or curved Facilitates easy opening and closing of shower doors