Item Type: Milk Cup Warmer_x000D_ Material: ABS+Aluminum_x000D_ Weight: Approx. 94g / 3.3oz_x000D_ Diameter of heated area: Approx. 8.5cm / 3.3in_x000D_ Product Size: Approx. 10.3x10x1.5cm / 4.1x3.9x0.6in_x000D_ Voltage: 5V_x000D_ Current: 1000mA_x000D_ Power: 10W_x000D_ Surface temperature: 90 1It is safe to use, and the large diameter heating surface of the thermostatic coaster is not hot and fully cares for it to prevent burns. 2Lightweight and portable, small size does not take up space, no matter whether you are traveling at home, it is convenient to carry, and it is warm and never leave your hand. 3Exquisite design, USB insulation coaster, unique appearance design, giving people a different style. 4The base can be used for multiple purposes. Free choice of flat bottomed containers such as ceramic cups, milk cartons, glass cups, etc., can play a constant temperature effect. 5Durable, made of high quality ABS and aluminum, not easy to damage, long service life, and can be used for a long time.1. Please allow 1?2cm error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.1 x_x000D_ _x000D_ Milk Cup Warmer