General description Set of 8 shower door rollers consisting of 4 upper rollers and 4 lower rollers, designed for smooth operation of glass shower doors, shower cabins, massage cabins, or sliding furniture fittings. The package includes screws and plastic covers for easy installation. Technical specifications Wheel diameter: 23mm Wheel width: 6mm Maximum glass thickness: 6mm Distance between the center of the mounting hole and the edge of the glass: 18mm Installation Easy to install with included screws. Upper rollers are adjustable by 8mm. Lower rollers are self-adjusting. Usage Designed for smooth sliding of shower doors. Maintains door balance for effortless operation. Other information Material: Brass and ABS plastic for durability. Includes 4 upper rollers, 4 lower rollers, and 8 plastic covers.