4 x Frame Tube Hole Plugs,fit 2-3/4" frame holes, please check your size to make sure this is what you need. 4 premium frame hole plugs (enough to replace all 4 frame holes) for 99-18 Silverado/Sierra 1500 REAR wheel well (will NOT fit 2500 or 3500) Tight fit! Keep out mud, dirt and pests. Easy, perfect fit with trouble-free installation; Heavy Duty Automotive Grade Thermoplastic No tools needed for installation; push into place; do not hammer. 4 piece frame hole plug kit for 99-18 Silverado/Sierra 1500 REAR wheel well