Description Product description Color: gray shower door rollers Pattern: double shower door rollers. Caster diameter: 23 mm Width: 5mm. Minimum hole size in glass: 11mm. Suitable for glass thicknesses of sliding doors from 3 to 6 mm. Material: plastic, BS nylon and stainless steel shower door rollers. These single shower door rollers fit glass shower doors when the distance between the center of the hole and the edge of the glass is 18mm. Package includes: 4 top shower door rollers and 4 bottom shower door rollers Features: - Easy to adjust the height and angle of the door. - These shower door rollers can be used in quadrants, curved showers or straight sliding doors. - The shower door roller is adjustable, easy to install, and the shower door is smoother than before, no shaking or screaming - No need to fish through shacks and plumbers or buy new shower doors. - The kit includes 4 upper adjustable shower door rollers and 4 lower shower door rollers. - Comes with a screw cap. - The spring is also suitable for curved shower doors. - Designed with nuts and plastic covers. Note: Please check the shower door glass hole size before purchase. Package: 4x shower door rollers top 4x bottom shower door rollers Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.