Wire Caps & Nuts features: This threaded nutfastener connectoris made of premium material, which can withstand long-lasting use. Features the copper and copper alloy material, which has high durability, not easy to deform. Fine workmanshlp, ensures practicality. Features-Color:Color Zinc-Material:copper, copper alloy-Size:2.10X1.50X0.80cm/0.83X0.59X0.31in The unique external thread of the hexagonal nut makes it easy to insert into the hole, save energy, and has excellent stability Easy to install, convenient and practical, can well meet your installation needs Fine workmanshlp, excellent texture, and good fastening effect can provide you with a better experience It can be tightened easily and will not drop easily, so you can use it with confidence It is simple in design, but very practical in use, which brings great convenience to you.