Joan 1Pair MTB Road Bike Bicycle Aluminum Handlebar Grips Handle Bar Cap End Plugs High Quality Bar end plug , Material: Aluminum alloy, Weight : 15g /pair Durable alloy handlebar end cap ,bright color take you good cycling mood Universal Fit - Works with most types of bicycle handlebars (including Road Bikes, Mountain Bikes, Fixies, or other adult bikes) Fit For the Inside diameter between 15-20mm handlebars, Installation suggestion: When you put the plug in the handlebar, you can add a little detergent or other lubricating liquid to the handlebar mouth, Then push the plug into the handlebar