2 Bottom rollers supplied. 2 x Bottom Shower Door Rollers. Top rollers also available to buy. Distance between the opening of the upper wheel and the top: <12mm. Glass thickness: 4-8mm. 304 stainless steel micro-bearing.
KEABATH 4pcs Solid zinc alloy Shower glass door roller shower twin door wheels runner pulleys 23mm diameter wheels for Shower enclosure shower room shower screen door rollers replacement
4 x Twin Bottom Zinc Alloy Shower Door Rollers/Runners/Wheels 23mm Wheel 6mm Glass Thickness L067
2 x Twin Bottom Zinc Alloy Shower Door Rollers/Runners 23mm wheel diameter SP4
SmoothLY 2 x Twin Bottom Zinc Alloy Shower Door Rollers/Runners/Wheels 23mm Wheel
2 x Twin Bottom Zinc Alloy Shower Door Rollers/Runners/Spares 23mm Wheels L101
2 X Twin Bottom Zinc Alloy Shower Door Rollers/Runners/Wheels 23Mm Wheel