【25mm Shower Door Rollers】Package includes 4 pieces 25mm diameter double shower door rollers (2 pieces top and 2 pieces bottom). The glass height can be adjusted by the stainless steel adjustment screw on the upper wheel. The height of the lower wheel button spring is automatically adjusted to the upper wheel.【Stable and Noiseless Sliding】The shower enclosure rollers are made of copper and electroplated plastic alloy, which have strong supporting force and anti-rust and can be used for a long time in a humid environment. Pull the door to move easily and there is no noise when moving.【Easy to Install】Comes with an anti-collision block and mounting screws to simplify installation and maintenance. Simply align the rollers with the glass mounting holes and use tools to tighten the screws. The anti-collision block is installed on the rail to block the wheels and prevent the glass from colliding【Suitable for 12-14mm glass mounting holes】The shower door rollers have a diameter of 25mm, suitable for glass doors with a thickness of 4-6mm and glass openings of 12-14mm.【A good helper for bathroom doors】The shower door mounting rollers are suitable for most shower rooms, shower cubicles and steam rooms, installed at the top and bottom of the shower door for easy opening and closing. It is a good helper for bathroom sliding doors