Clear and Crisp Sound: The premium copper alloy construction delivers a powerful 100dB sound, effectively warning pedestrians on busy streets or mountain trails. Compact and : Weighing just 43g, this slim bike bell design saves handlebar space, while the nylon spring lever ensures effortless ringing, perfect for carbon fiber road bikes and commuter bicycles. Enduring Construction: Made with a rust-proof copper core and waterproof nylon casing, this bike bell is built to withstand harsh weather conditions, ensuring reliability in rain and snow. Universal Easy Installation: Designed to fit handlebar diameters of 1.06-1.18in (27-30mm), this bell is compatible with 99% of drop bars and road bikes, featuring a screw-fastened setup for easy mounting. Dual-Side Bell Design: The flexible design allows you to choose your preferred ringing side based on your riding habits, with a dual-action lever suitable for both left and right-handed use. Material: Bell Cap: Copper Alloy Base: Nylon Impactor: Brass Picks: Nylon Product specifications: applicable pipe diameter: 27-30mm Applicable models: road cars Color: As shown Specifications: Left Package Contents: 1*Bike 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.