Material The windshield washer cap is made of special flexible plastic designed to stay durable over time and resist cracking or deformation with longterm use. Compatibility Suitable for most models, including cars, buses, trucks, coaches, and sports cars. Installation Easy to install with no tools required. Quickly old or damaged caps without professional help. Protection and performance Keeps the windshield washer reservoir protected from dust, dirt and environmental contaminants. Helps extend the life of the reservoir and reduces washer fluid consumption. Use scenarios Routine maintenance on a vehicle to keep the washer system clean and functioning smoothly. Fleet maintenance for commercial vehicles such as buses, trucks, and coaches to standardize parts and reduce downtime. Onroad or garage replacement when the cap is damaged or lost, ensuring quick restoration of the washer system.