Made of aluminum alloy end caps insert, fit your handlebars well and tighten up them firmly. Anodized process of the bar end plugs, make it keep a well finished appearance in a long period. A wedge design, hold the tape better, and easy to install- knock them in and tighten the screw. Perfect for most bicycle handlebars, like road Bikes, mountain Bikes, , MTB BMX or other adult bikes. Perfect suitable for handlebars with inner diameter between 15-23.5mm. Specification: Material: Aluminum Alloy Diameter: 2.4cm/0.94inch Total Length: 3.9cm/1.53inch Package Includes: 1 Pair Handlebar Ends 1 Piece Tool Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.