This dimmer switch grommet is designed for vehicles with a 2-1/2" flange and a 1" inner diameter, making it a perfect fit for your dimmer switch area. Crafted from durable chocolate brown rubber, it features a flange that secures easily into your carpet or floor mat, ensuring a snug and reliable fit. Built with state-of-the-art rubber compounds, this grommet is resistant to chemicals, sunlight, and ozone, providing long-lasting durability even in tough conditions. Its thoughtful design not only protects the dimmer switch but also enhances the interior look of your vehicle by seamlessly blending into the floor area. Backed by Metro’s 30-year Platinum Warranty, you can trust this part to perform and last for decades.