Description: Quality Material: This Cycling Bike Bell is made of quality copper and stainless steel, which is wear resistant and sturdy for long term use.Retro Design: The Bicycle Bell features a classic retro design with a smooth surface and delicate texture, easily matching your bicycle style.Clear Sound: With a simple click, this Bicycle Handlebar Bell produces a crisp and clear sound. It is easy to install, remove, and use.Wide Application: This Loud Sound Bell fits handlebars with diameters from 20mm to 30mm. It can be easily installed on the handlebars of mountain bikes, road bikes, folding bikes, adult bicycles, etc.Practical Gift: This Bike Bell makes an ideal practical gift for family members or friends who are cycling enthusiasts. Specification: Material:Copper and Stainless Steel Size Chart: 3cmx3cmx3.5cm/1.18inchx1.18inchx1.38inch Package Includes: 1 Cycling Bike Bell1 Rubber Band Note: Please allow slightly errors 1-2cm differences due to manual measurement.