Don't let the tiny size fool you. Mirrycle's Incredibell Bellini is little, light and gets noticed! Its diminutive dimensions and pivoting ringer let you mount it just about anywhere on your handlebars. A flick of your finger and the Ding! Ding! rings clear for all to hear. - Weight: Black & Silver 17g, Brass 28g - Dome Diameter: 28mm (1.1") - Fits handlebars with 21mm - 22.6mm (.83" - .89") outside diameters