Shower Door Emergency Rollers4 Pack Starlight Replacement Sliding Shower Door High quality: high quality POM plastic. Adapts to different types of showers. Guarantees your doors a more comfortable glide No decompression and no waste of money: did you buy a sliding system and it's broken You think with horror that now you have to buy a new one. Forget There are replacement shower door rollers that will fit any sliding system in your home. If you're having trouble sliding shower doors, use this quick fix and don't waste your moneyUse everywhere: shower door slides for showers, massage cabins, bathtubs, jacuzzi and even for furniture accessories. Make sure the door or doors open easily and smoothly. Replace your broken system. Premium Quality Shower Rollers Rolling Component: Smooth rolling of the door with a slight forward or backward movement. is assigned, distributes the mass of the glass,controls the movement in the given direction. This gives the product even more durability and a longer life Steel part of the wheel: 9mm diameter x 3mm heightType: 4 rollers for shower door. wheel thickness: 5mm. Books with screws. Suitable for 4-6mm thick shower door. Roller diameter: 20mm, inner hole 6mm, fixed with M6 screw. The pulley is made of copper + POM wheel, and the screw is made of stainless steel. Corrosion and rust resistant steel, good comprehensive performance. Pulley bearing capacity, good stability, small coefficient of friction, good mute effect. Easy installation, often used for bathroom sliding glass door pulley. ,"