Romosste Alloy I Love My Bike Bicycle Bell, Ringer Style Bell, Adjustable Handlebar Mount Ringer style bell,Classic "rrring rring" sound Adjustable handlebar mount. Material: Plastic+Aluminium. 2inch diameter dome Very easy to install on the bike, it's sturdy, and very cute. Environment friendly bell with sweet sound. Safely alert others to your approach with a quality bicycle bell from Benran.