<ul><li>25mm Shower Screen Double Rollers Package contains 4 double shower door rollers (2pcs top and 2pcs bottom). The stainless steel adjustment screw on the top wheel allows the height of the glass to be adjusted. The lower wheel spring or knob height is automatically powered according to the upper wheel. </li><li>Fits 14mm glass mounting holes: 25mm diameter shower door roller, fits 4-6mm thick glass doors with 12-12mm glass openings 14mm. (14mm glass hole is recommended)</li><li>Flexible adjustment Turn the top screw to adjust the height of the wheel; remove the chrome cover to adjust the screw according to the thickness of the glass. </li><li>Sufficient design The double wheel design of the shower door wheel makes it smoother, quieter and more comfortable to use. li><li>Application Scenarios The flexible wheel can be compatible with both flat and curved glass designs. Fits most shower stalls, shower stalls and steam cabins. </li><li> Note: The data is all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be some color difference, the actual object received shall prevail.