Specifications:

• Color: Black/Silver/Gold
• Material: Copper + Plastic ( Gold ) / Aluminum Alloy + Plastic ( Black & Silver )
• Size: about 25mm*63mm/10*25.2in
• Weight: about 57g
• Handlebar Diameter: 22.2mm/0.89in

Features:

1. 1. Invisible design, small and exquisite appearance, be out of the ordinary
2. 2. Make a sound by turning, which is convenient and quick to use
3. 3. Made of pure copper, the decibel is higher, the sound is farther and clearer
4. 4. Easy to install, suitable for 22.2mm diameter handlebars, suitable for more than 80% of bicycles