General description Set of 8 shower door rollers: consisting of 4 upper rollers and 4 lower rollers, a total of 8; delivery includes screws and plastic cover. Suitable for glass shower doors, shower cabin doors, massage cabin doors, or sliding furniture fittings. Roller material: made of brass and ABS plastic, sturdy and durable. Technical specifications Wheel diameter: 23mm Wheel width: 6mm Maximum glass thickness: 6mm Distance from the center of the mounting hole to the edge of the glass: 18mm Installation Easy to install and move, keeps the door balanced and allows for minimal effort when sliding. Usage Designed for smooth operation of shower doors and sliding furniture. Other information Note: All measurements are manual; please allow for 1-3cm error due to differences in light and display. Color differences may occur; refer to the actual item received.