"Cable end cap adopts advanced plating anode technology, bright color and plump,protect your cable ends perfectly High quality.Convenient and practical.Multi-color choices make your bike unique Brake Cable and Variable speed Cable Universal,Need to clamp when installing Materials:Material: Aluminum Alloy Length:0.47in , hole diameter:0.1in, fit 0.1in cable or smaller 8 colors: red, black, gold, silver, green, blue, purple, 50pcs Uses: Mainly used in Brake Cable and Variable speed Cable to prevent the wire cable from spreading after cutting, causing unbalanced force of the cable wire off-line, small objects and large uses, do not underestimate these little guys,If you don't have these, it's enough for your headache Note:Need to clamp when installing"