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

Color: BlackSize: 5.3 x 3.5cm (H x Dia.); 1inch=2.54cmInput Vvoltage:12V-24VUSB Output Voltage: 5VDouble USB Output Current: 1A and 2.1AApplicable Models: Cross bike， scooters， cars.Easy installation.With blue LED indicatorWaterproof USB port， unique design for installation ， USB waterproof cover.Package Content:1 x USB Charger Adapter