The Sourcing Map Bike Handlebar End Plugs Aluminum Bar End Caps 16-21mm Adjustment Expanding Locking set is an essential upgrade for any cyclist. These high-quality components are designed to fit securely onto your existing bike handlebars, providing a secure and adjustable grip for your hands. Each cap is made from aluminum alloy, ensuring durability and lightweight construction. The set includes 16-21mm adjustment expanding locking components, allowing for a perfect fit that complements your cycling style and technique. The locking mechanism ensures the cap remains securely fastened, reducing the risk of cap removal during rough terrain or high-speed riding. Moreover, the set includes a tool for easy installation and adjustment, making it an ideal solution for riders of all skill levels. With the Sourcing Map Bike Handlebar End Plugs Aluminum Bar End Caps 16-21mm Adjustment Expanding Locking set, you can enjoy enhanced comfort, stability, and control on your bike.