This perennial favorite will now also be available with silver and solid brass domes, as well as our most popular black dome. The pivoting dinger and dual-size clamp, which fits 21.7mm to 26mm handlebars, remain the same.Specification:-Mirrycle Part #: Black: 20INC; Silver:20INCS; Brass: 20INCBUPC: Black: 7 64459 31100 0; Silver: 7 64459 31103 1; Brass: 7 64459 31104 8Suggested Retail Price: Black and Silver $11.00; Brass $12.00Color: Black; Silver; BrassDome Diameter: 33mm (1.3")Fits handlebars with 21.7mm - 26mm (.86" - 1.02") outside diameters.