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

1.4 USB1.1 / 2.0 Interface2.Coasters temperature> 50 ℃3.USB power supply4.Time， coasters temperature display5.It can be used for milk， coffee， tea and other beverages insulation6.We recommend the use of stainless steel tumbler7.Product size: 14 * 1 4 * 7.5cm8.Packing size: 45.5 * 37 * 45.5cm9. Packing Gross Weight: 0.3kg