Incredibell Crown Bell Ring My Bell The Crown is a traditional bell with a larger 45mm dome and a contoured dinger arm that sits right under your thumb. You can mount it on the left or right side of the bar, then rotate the arm to the spot that feels best. It comes with a brass or chrome-plated dome. Features45mm dome, a larger bell for a fuller sound Contoured dinger arm, rings with a flick of the thumb Rotating dinger arm, set it where it's most comfortable Left or right mounting, goes on either side of the handlebar Brass or chrome-plated dome, two finishes to match your bike SPECIFICATIONSIntended Use Road, Commuting, Casual Riding Dome Diameter45mm (1. 8")Handlebar Compatibility22mm - 25. 4mm Weight68g (2. 4oz) | Incredibell | Crown Bell Chrome