These shower door rollers can be used on a quadrant, curved shower cubicle or straight sliding door, as long as the existing hole fits the new one’s, this is important before purchasing. Not only do the shower door rollers adjust to fit perfectly the shower door rollers are easy to install and the result is smoother running shower doors than before rather than juddering and screeching. Feature - Color: As Shown. - Material: Zinc Alloy. - Size: 5.5 x 3.7 x 3.7cm. - Set of 4 New Single Shower Door Rollers (2 upper rollers and 2 bottom rollers). - Excellent quality stainless steel bearing balls, Excellent quality zinc alloy covers, and rustproof. - Diameter of the wheel: 26mm. Please measure to ensure our product fit for your bathroom door before order. - There is no Noise and Slide Smoothly. It is easy to Install and Maintenance. Package list: 2 x Roller(Upper Roller Set) 2 x Roller(Lower Roller Set)