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

Product informationMaterial: ABSAccessories: USB cablePower: 3WVoltage: 5VColor: blue， white，yellowSize: Width 12.5CM， high 2.5CMPractical instructions1， please utility supplied USB cable.2. Do not let children touch the metal surface.3， this product is only for insulation purposes， not for heating.4， please use the flat bottom cup insulation， so the effect better (except insulation Cup)5， turn off the power switch when not in use.