Butterfly Shower Door Rollers Description: Set of 8 rollers supplied (4 top, 4 bottom). Luxurious top quality product. 100% new. Top rollers are height adjustable to allow the door to be lined up to mate with the frame or magnetic seal where you have a pair of doors. Swivel action to also fit curved and quadrant showers. Bottom rollers are spring loaded. Fits Aqua showers and many others. Specifications: These rollers fit glass shower doors with 2 glass holes 26mm apart. A - Wheel Diameter: 23mm. B - Wheel thickness: 6mm. C - Diameter of hole in glass: 7.5mm. D - Glass thickness: 4-6mm. Materials: 304 stainless steel micro-bearing. POM zinc alloy axis - never rust.Postage to UK mainland and worldwide. If you still cannot find the part you are looking for or need to ask any additional questions please contact us.