always delivers a crisp ringtone to be heard clear,which make the riding much . Adopts quality metal which is sturdy,anti-rust and anti-aging. Quick release design means easy and tool-free to install and remove.The mount fits handlebar perfectly. Fits for any standard straight bicycle or scooter handlebar,mountain bike,kids bike,cruiser etc.Nice accessory for bike owner. Color: Silver & Black Material:aluminum alloy Size:7 x 6 x 3cm Package Contents: 2 x Scooter Bell Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.