[Quantity]: 8 shower enclosure rollers, including 4 upper rollers and 4 lower rollers. Ideal for replacing shower door rollers. [Size]: Shower door rollers measure 23mm in diameter. Suitable for glass doors with a thickness of 5-6mm. [Material]: Made of ABS and alloy. Rust-resistant, sturdy, durable, and designed for long-term use. [Easy Installation]: Smooth-gliding rollers that are easy to install and fit most glass shower doors. A practical hardware component for sliding glass doors. [Application]: Designed for use in shower enclosures, bathroom enclosures, jacuzzis, and other sliding door systems. Ensures doors open and close smoothly. Specification: Material: ABS and alloy Roller diameter: 23 mm Suitable for glass thickness: 5-6 mm Product Features: Simple sliding mechanism for easy operation and cleaning. Wear-resistant wheels provide smooth and quiet movement. Compatible with most shower stalls, shower enclosures, and steam rooms. Features a PTFE-containing water-repellent lubricant to extend roller lifespan. Scope of delivery: 8 x Shower Enclosure Rollers