Sturdy Material: The long-lasting black pipe fitting cap is made of malleable cast iron which has great toughness and strength, the metal pipe can be used for years and will not loosen easily Easy Installation: Compatible for 1/2 inch fittings. The deep thread of the pipe cap can be attached easily with other pipe fitting and can be tighten without any screws Wide Using Scenarios: It's easy to be applied on industial style furniture DIY projects. You can use the sturdy iron pipe fitting caps in any pipe furniture such as bookshelf, which will bring you house a Retro Industrial charm Dimension: 25/32 inch Diameter, 19/32 inch Height. 20 pcs pipe fitting cap in the box Various Sizes Available: Three different sizes for your choice, please check the size before purchasing. You can use Home Expert pipe fittings to make different furniture combination with your own innovations Fits for standard 1/2" 3/4" 1" threaded pipes and pipe fittings. Sturdy and long-lasting Material: We spray an extra layer on the pipe fittings to make the pipe fitting remain sturdy after many years of use. The close bite of thread pipe and pipe fittings will also not get loose easily after long time use. Wide Using Scenarios: Metal pipe fitting fits a variety of styles: steampunk lighting, industrial, factory, French country farmhouse, vintage, retro. Home Expert also have a variety of fittings in various sizes, pipe, pipe nipples, elbows, tees, outlets, caps, flanges and so on to meet all your needs. Easy to Install: These black pipe fittings are threaded, you can connect them to any other pipe fittings, you can easily complete any industrial furniture to your home. Only fit for industrial style furniture DIY.