Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

100% Brand new and high quality. PRESS button to select 6 sounds. the sound will change automatically. Compact and mini design. Easy to install and remove. Can be installed on all kinds of bikes. To ensure the security of biking. Specifications: Material: Plastic + electronic components Size: Approx 88 * 56 * 42 mm / 3.47" * 2.21" * 1.65" Color: Black Power: By 9V battery (included) Ring type: All kinds of different loud voices， such as car horns， the style of the ambulance. Length of the control line: 220 mm / 8.67". Package included: 1 x Bicycle Bell 1 x 9V battery 1 x holder 25mm