Set of 8 shower door rollers: consisting of 4 upper rollers and 4 lower rollers, a total of 8; Delivery with screws and plastic cover. Suitable for glass shower door, shower cabin door, massage cabin door or sliding furniture fittings. Roller material of the shower enclosure: Made of brass and ABS plastic, sturdy and durable. Size: The wheel size is approx. 23mm in diameter, 6mm in width; the maximum glass thickness is 6 mm; The distance between the center of the mounting hole and the edge of the glass is approx. 18 millimeters. Easy to slide: the bathroom slider is easy to move and install, keeps the door in balance and allows the door to slide with minimal effort. Product Description 4 upper shower door rollers and 4 lower shower door rollers, with plastic cover. A practical fitting for the shower door glass slider. Material: Brass rod and ABS plastic, sturdy and durable. Castor size: The wheel diameter is about 23mm, the thickness is about 6mm; Suitable for glass thicknesses of 4-6mm. The distance between the center of mounting hole and edge of glass is approx. 18 millimeters. Shower door rollers 23mm rollers Adjustable: Upper shower rollers: 8 mm Under shower rollers : self-adjusting Replacement rollers for sliding glass shower doors. Good to push: Easy to move and install, the bathroom rail glider keeps the door balanced and allows the door to slide effortlessly. Easy to glide: The bathroom glider is easy to move and install, keeps the door in balance and allows the door to slide with minimal effort. Application of shower enclosure rollers: Suitable for glass shower door, shower enclosure shower enclosure door, massage enclosure door or sliding furniture hardware. Delivery: 4 x shower door top rollers 4 x Bottom Shower Door Rollers 8 x Plastic Cover