Scope of delivery: You will receive 4 bathtub rollers, roller diameter: 27 mm; comes with screws, screw size: M4 x 12 mm, sufficient quantity to meet your needs. High-quality materials: Made of nylon roller and copper mandrel, it has good overall performance. If you encounter problems when sliding the shower door, you can use it to ensure the most comfortable sliding of your door. Shower door roller: High durability and long service life. The reasonable design makes the shower roller effortless to use and reasonably implements the glass quality assigned to it to control movement in a specific direction. Easy to use, easy to install. It has good stability, a low friction coefficient, and a good damping effect. It is widely used in the slide rails of sliding glass doors for bathrooms. Applications The shower door slide rail is suitable for most shower rooms, shower enclosures, bathtubs, and steam rooms, etc. The slide rail allows you to slide the bathroom door easily and smoothly when