Metal bicycle bell, silvery sound, stylish and compact. Suitable for folding bikes, mountain bikes, city bikes, etc. The bell cover is made of aluminum alloy and will not rust. Product size: 65 x 55 x 53mm/2.56 x 2.17 x 2.09", Product weight: 28g, Product material: aluminum alloy+ engineering plastic, Product color: silver/ black, Application: suitable for mounting handlebars with a diameter of 21-24mm/0.83-0.94"