Features: Anti-rust: The bicycles bell is made of good-quality copper alloy, there is anti-corrosion durable coating on it outside. It will not rust, even be used on a rainy day usually. Clear & Loud Tone: The mini bike handlebar bell has a loud and also clear Ding, helping others to aware of your presence, making your cycling journey more safety. Retro Design:The Bike Bell with delicate outlooks and is small in size.. Can be positioned up on top of bar or in front of bar for more aerodynamics, less noticeable profile. Easy Installation: Our copper alloy bike bell fit for bicycles from 22mm to 32mm handlebars or stems. Please measure handlebars before purchase. Fit for Most Bike: Designed for pretty much all bicycles, mountain road bike, and also scooter, hybrids bike, or e-bikes, whether for adults or kid. Specifications: Material: Copper Alloy+Nylon+Stainless Steel Color: Black/Silver Package Weight: about.89g Length: about.94mm/3.70in Fit Handlebar Diameter: 22-31.8mm/0.87-1.25in Package Includes: 1 Set of Bicycles Bell note: Please allow 1-3mm error due to manual measurement. Please make-sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!