JR Products 358-A 4 Inch Rubber Bumper Plug - Black Protective Cap for Trailers, RVs, Boats & Marine Applications - Shock Absorbing End Caps for Vehicle Protection

The JR Products Bumper Plug Set replaces all square bumper end plugs and is designed with tabs to make a more secure fit. The tabs fit in pre-drilled bumpers or add the holes to your existing bumper. Constructed of high impact rubber that won’t shrink or fade. 3-3/4" collar. Lifetime Warranty. Two plugs per set.