This product is a set of 8x shower door rollers, suitable for use in bathrooms with shower enclosures. The rollers are made of brass, ensuring durability and corrosion resistance. The item length and weight are as shown, with multiple sizes available to fit different glass thicknesses (20mm, 23mm, 25mm, and 27mm). Designed specifically for showers, these door rollers provide smooth and easy operation for your shower enclosure.