General description These 8pcs 23mm shower door roller wheels are designed for easy installation and smooth operation of your bathroom sliding doors. They are adjustable, allowing you to modify the height and angle of the door for optimal performance. The rollers are suitable for various types of shower doors, including quadrants, curved showers, and straight sliding doors. Technical specifications Quantity: 8 pieces (4 upper rollers and 4 lower rollers) Roller diameter: 23mm Includes a threaded cap screw Other information Designed with plastic nuts and covers Please check the size of the shower door glass hole before purchasing