Set of 2 Top and Bottom Shower Door Rollers/Runners 23mm Wheel Diameter AQ2 Hole Size in Glass_4mm C - Length of half

C  - Length of half knob: 30

C  - Diameter of hole in the glass: 11mm

C  - Diameter of hole in glass: 8

Rollers are held in place with a nut and are adjustable up and down to allow the door to be lined up to mate with the frame or magnetic seal where you have a pair of doors

Twin/Double Zinc Alloy Shower Door Rollers For Sliding Shower Door

Set of 2 Top and Bottom Shower Door Rollers/Runners 23mm Wheel Diameter AQ2 Hole Size in Glass_4mm C - Length of halfSet of 2 Double Top and Bottom Shower Door Rollers Description: Set of 2 rollers 1 top and 1 bottom supplied. Luxurious top quality product. 100% new. The truck is held in place with a screw. Swivel action to also fit curved and quadrant showers. 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. Bottom Rollers are spring loaded to allow the door to be lined up to