Product Description: Suitable for; different types of shower, which makes your sliding door very comfortable. Protect products from corrosion, forming a durable waterproof protective layer, extending service life.< br />The product is more durable and has a longer service life. Suitable for: most shower rooms, shower rooms and steam rooms. Specification: Size: diameter 20mm Package includes: 4 * single round Notice: 1. Due to the light and screen difference, the product color may be slightly different from the picture 2. Due to the manual measurement, please allow a difference of 0.5-2. 2 cm.