Features: Made from high quality rubber material, this 1306e4 coolant expansion tank cap ensures durability and long lasting performances, providing a reliable seal to prevent coolant leaks. Perfect for both car owners and mechanic, this 1306e4 coolant expansion tank cap is an essential component for maintaining the cooling system of 307, 206, 207, and rcz models. Whether you're performing routine maintenance or repairing a vehicle, this 1306e4 coolant expansion tank cap is a must have accessory that guaranteesproper pressure regulation in the cooling system. Upgrade yourcar cooling system with this reliable and easy to install 1306e4 coolant expansion tank cap, ensuring efficient heat dissipation and preventing engine overheating. Easy for apply and use. Specifications: Material:Rubber Size:Approx.6x6x3cm/2.36x2.36x1.18inch For 307 206 207 RCZ Model:1306E4 Package Includes: 1x Coolant Expansion Tank Cap note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.