JR Products 208-A Bumper Plugs with Tabs designed to fit most 4-inch RV bumpers. These durable black plugs are constructed of high-impact rubber that is resistant to shrinking and fading over time. The design features tabs that fit into pre-drilled bumper holes to ensure a secure fit, helping to keep debris out of your square RV bumper. Made in the USA, this two-pack provides a clean, finished look for your camper or motorhome exterior.