Description: These rollers fit glass shower doors where the distance between the centre of the fixing hole and the edge of the glass is 18mm. The truck is held in place with a nut and this is covered with a plastic cover making them pleasing to the eye and easy to clean. Swivel action to also fit curved and quadrant showers. Bottom rollers are spring loaded. Top rollers are height adjustable. Set of 8 Twin Shower Door Rollers 4pcs top and 4pcs bottom rollers. Suitable for most shower enclosures, shower cabins and steam cabin enclosures. Easy glide replacement shower door roller. Specification: Material: zinc alloy,plastic. Diameter of wheels: 25mm Mode: Swing Packing included: 2× Door Rollers