Material: The windshield washer fluid reservoir cover cap is made of high-quality PP, durable for long-term use. Fitment: Replacement front windshield washer fluid reservoir water tank bottle cap for Saab 9-3 1998–2012, 9-5 1998–2010. Part No.: 12767300 Function: Helps prevent overflow of fluid in the reservoir and ensures safe driving conditions. Replacement: A common spare part to replace broken or missing washer tank lid cover cap; easy to install. Specifications: Material: PP Size: 4.6 cm x 4.6 cm / 1.81 inch x 1.81 inch Package Includes: 1 Piece Windshield Fluid Reservoir Lid Cap Note: Please allow slight variations due to manual measurement and differences in display monitors.