8x Adjustable Dual Roller Shower Door Wheels for Bathroom 25mm

Set of 8 shower door rollers (4 top and 4 bottom). Roller diameter: 25 mm. Roller width: 6 mm. Minimum hole size in glass: 11 mm. Maximum tempered glass thickness: 6 mm. Materials: plastic, nylon, and stainless steel. Supplied with screw covers. Spring mechanism, also compatible with curved doors. Includes screws and plastic covers. [Material]: copper rod + plastic + nylon wheel. [Glass Size]: 5 mm. If you need to fit other glass sizes, simply cut the glass tank's connecting strap! [Features] Top wheel: adjustable, the wheel can swivel left and right. The bottom wheel has a spring and swivels left and right. [Size] Top wheel: height: 35 mm, width: 27 mm. Wheel diameter: 25 mm. Lower dial: Height: 33 mm, Total height with knobs: 42 mm. Width: 27 mm. Wheel diameter: 25 mm. [Hole spacing/opening]: Glass margin: 19 mm. Opening: 10 mm - 12 mm. Pulley diameter: 25 mm. Note: You can adjust the pulley by turning the screw clockwise or counterclockwise with a screwdriver to shorten or lengthen the glass. Suitable glass thickness: 4-6 mm glass, 9.5-14 mm glass hole.