Single Shower Door Rollers With Aluminum Shaft. Feature .Single Shower Door Rollers with Aluminum Shaft. .White Nylon Roller Thickness 6mm.Inner Diameter 5mm.According to Diameter of Nylon Roller, There Are 20mm,22mm,23mm,25mm,27mm.Please Select "Color" and "Outer Diameter" You Need, I Will Post According to Your Order. .Assembly Size RequirementGlass Thickness 4-6mm;Glass Mounting Hole Diameter10-12mm. .Main Material:Nylon Roller, Aluminum Shaft and Stainless Screw; ..Color:Gray and White; .Direction:Swing. 7..Mainly Used in Bathroom Shower Room Shower Enclosure Show Door Pulley. .If You Need Other Shower Door Rollers,please Do Not Hesitate to Contact with Me. Specifications Type: Door Rollers Load Capacity: 80kg/pcs Model Number: Shower Door Runner Material: Plastic . We are an international based seller that will ship your order from abroad, please at least a minimum 14 working days for delivery right now due to the ongoing delays in shipments globally.