Are you looking for professional trailer bumper end caps for ? Our products will be your . Made of ABS materials, it has excellent durability and practicality. The simple structure design makes it easy to install and use. Features -Color:Black -Material:ABS -Size:10.30X10.30X2.00cm/4.05X4.05X0.79in - There is a square hole in middle of the plug, which is for air venting and to use for removing plug. - Fits 4 inch rv bumpers, conceals sewer hose, help center vent hole for air circulation. - Lightweight and easy to install and operate, high precision, strong reliability, to ensure safe use. - Perfect fit with easy installation. The plastic end plug can be used on rv, trailer, bumper. - Simple design and fine craftsmanship, reliable for you to replace the worn bumper end plug. Package list: 2 x Bumper Plugs