These Opel tyre valve caps are designed to protect your wheels from the elements by preventing dirt, dust, and moisture from entering the valve mechanism. Crafted from wear-resistant aluminum with a black finish, they feature a corrosion-resistant treatment that ensures they withstand constant exposure to weather and humidity without degrading. Each cap includes an internal gasket for an airtight seal and is built to remain securely fixed even when driving on uneven roads. Because they use a standard size compatible with most tyre valves, you can simply screw them on by hand without needing any additional tools.