General description AlwaysH 4 Pcs Shower Door Rollers are designed for home sliding shower door replacement. Made from high-quality nylon wheels and copper shafts, these rollers ensure low noise and smooth operation, making them ideal for glass doors with a thickness of 4-6mm. Technical specifications Roller diameter: 23mm Wheel thickness: 5mm Glass thickness compatibility: 4-6mm Glass mounting hole size: 12-14mm Usage These shower door rollers are easy to install and use, allowing the shower door to slide effortlessly. The set includes 2 top rollers and 2 bottom rollers, each equipped with a bumper and a stainless steel screw. Other information The data are all measured manually; please allow a 1-3cm error due to differences in light and display. There may be some color differences; please refer to the actual item received.