Modern and practical:handsome designed bicycle handlebar plugs give your bike a modern look, easy to install on your bicycle, help to protect the rod and handle and reduce damage while wresting Easy to install: you need installation tool to insert and tighten the screw, thereby the device reliably keeps in its place Fits for: suit for handlebar inside diameter of 17.6-21.8mm, works well with most bicycle handlebars including road bikes, mountain bikes, fixies, or other adult bikes, let the hole of handlebar have something filled, perfect replacement for cheap plastic end plugs durable and sturdy,enhance your riding experience construction delivers outstanding durability and light weight. colour:color Material:Aluminum alloy size:Diameter after expansion: 21.9mm Package Contents: 1*pair Bike Handlebar Plugs Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.