Material This windshield washer bottle cap is made of sturdy and practical plastic for longlasting use. The cap is printed with waterspraying instructions to help locate the washer fluid reservoir. Compatibility and design Fits most models, including cars, buses, trucks, coaches, and sports cars. Easy to install and can be replaced directly. Features a flexible handle for easy handling and secure fixing; the cap fits firmly around the reservoir mouth. Important note Please confirm that the diameter of your washer bottle cap is similar to this product before . Use scenarios Replacing a worn or damaged cap on a standard windshield washer reservoir in a passenger vehicle to prevent leaks and ensure reliable operation. Fleet maintenance for buses, trucks, and coaches, enabling quick, consistent replacements and reducing downtime. On performance or sports cars where the reservoir cap needs to stay secure during frequent refills or detailing.