Upper Bound Frame Tube Hole Plugs for Chevrolet Silverado GMC Sierra fits Rear Wheel Well in 1999 - 2010 and 2014 and later Models Fits 2014 and later models. Also fits 1999 thru 2010 Models. Does not fit any HD models. Keep out mud, dirt, and pests. Made of durable black plastic nylon. Inexpensive dress up for improved rear end appearance. Installs in seconds. Field tested for long lasting durability.