This sweet retro look is amazing!
 
-Material: Copper+Stainless steel
-Colour: Gold
-Rust proof steel: Robust stainless steel material.
-Handlebar diameter: Two lock bars are included to adapt to handlebars of different diameters.
-Clear sound, compact appearance, easy to disassemble and assemble.
-Small & portable, does not occupy the position of the handlebar.
-Weight: About 52g