YUANQIAN Stainless Steel 23mm Shower Door Twin Rollers Runners ? Set of 4-Top & Bottom

YuanQian Set of 4Twin Shower DoorRollers (2pcs top and 2pcs bottom)
Suitable for most Shower Enclosures
Shower Cabins and Steam Cabin Enclosures Easy Glide Eeplacement Shower Door Roller
From Picture Clearly see which Top /Bottom Roller Glass Open-Hole: ¦8-13MM can be fit
Pulley: 23MM , GlassThickness: 4-6mm
Suitable for most Shower Enclosures
Shower Cabins and Steam Cabin Enclosures
2Double Top +2 Double Bottom