Crane bells are made in Osaka, Japan. These traditional designs are timeless and have beautiful clear ring tones.
This is the larger size from Crane, designed to fit pretty much any handlebar, that is plenty loud 50% louder than the little brass bells that aren't quite loud enough, and louder even than your typical ding-ding bells. Every bike should have one.
22.2 - 25.4mm clamp
Loud and clear tone
Spring loaded lever arm strike mechanism