About This Size - The bike bell fits handlebars with a diameter of 0.87", the overall size is 2" x 1.6" x 2.17" (L*W*H) and the diameter of cover is 1.38". Material - Made of durable aluminum and PP materials, the bike ringing bell is wear-resistant, rust-proof and waterproof. After anodizing, this bicycle accessory can effectively prevent corrosion and ensure long-term use. Easy to install, just choose an appropriate position on the handlebar to install the bell, and then tighten the screws with a screwdriver to complete the installation. Feature - The aluminum bicycle ring bell can make a crisp and loud sound, which makes people hear more clearly and makes riding safer. This bike bell can rotate rotate 360°, allowing you to decide whether to install it on the left or right side according to your riding habits. Application - Classic bicycle bell fits for handlebars with a diameter of 0.87 inches, and is suitable for bicycles, road bikes, mountain bikes, scooters, MTB, BMX bikes, children's bicycles, etc. Notice - Please avoid exposing the bell to water for a long time or a lot of dust to prevent the sound from becoming blurred or unclear. Overview Color : Black Red Size : 2.3" Brand : HARFINGTON Material : Aluminum Item Weight : 0.13 Pounds