PERFECTLY MOUNTS ON HANDLEBAR ENDS TO SAVE SPACE - No interference with existing grips or accessories, designed for seamless integration with 18-25mm diameter handlebars UNIVERSAL FIT FOR ROAD AND MOUNTAIN BIKES - aluminum alloy construction withstands trail vibrations and urban commutes with a finish CRISP 80DB RING HEARD IN ANY WEATHER - Precision-engineered delivers clear audible alerts even during heavy rain or windy conditions ULTRALIGHT DESIGN AT ONLY 65 GRAMS - Adds minimal weight to your ride while maintaining rugged durability for long-term use INSTALLATION IN UNDER - Threaded insert system securely locks into handlebar ends with two simple twist-and-lock steps Color: As shown Material: Copper Alloy + PP Package Contents: 1x Bicycle Mini Bell Only the above package content, other products are not included. Note: Light reflection 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.