MBPF-1/4" 0.25 inch Locking Black Plastic Body and Sheet Metal Hole Plug Qty 50 PDR Paintless Dent Repair. Dome plugs are finishing plugs for unneeded or unused holes in chassis or other surfaces. Convex design tapers to a thin edge for a seamless finish Matte finish head offers a professional and finished appearance Easy installation Plugs lock firmly into surfaces Material: Nylon 6 Color: Black