General description These shower door rollers are designed for smooth and quiet operation, making them an ideal replacement for your shower cubicle. The set includes 4 double rollers (2 for the top and 2 for the bottom), ensuring a complete upgrade for your sliding shower door. Technical specifications Roller diameter: 23mm Glass door thickness: 4-6mm Recommended glass hole size: 14mm Open glass hole size: 13.5-14mm Installation Easy to install on the top and bottom of the shower door. Usage Designed for smooth sliding and noise-free operation when opening and closing the shower door.