Features: 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. Specification: Item Type: Milk Cup WarmerMaterial: ABS+AluminumWeight: Approx. 94g / 3.3ozDiameter of heated area: Approx. 8.5cm / 3.3inProduct Size: Approx. 10.3x10x1.5cm / 4.1x3.9x0.6inVoltage: 5VCurrent: 1000mAPower: 10WSurface temperature: 90 Package List: 1 x Milk Cup Warmer Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.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.