Description:1.Made of iron, it is tough enough and hard to break.2.The surface is electro-plating, with a professional-looking.3.Easy to use, direct put the ball chain into the connection, no need for tools.4.Widely used on crafts making, such as leather suitcase chain, , keychains, light fixture chains, and other DIY projects.Specification:Material: IronMax Inner Width: 1.7mm / 0.07"Fit for Ball Chain: 1.5mm / 0.06"Total Size: 6mmx2mm / 0.24"x0.08"(Length*Width)Package Content200 x Ball Chain Connector