Specifications: L 16.5cm x W 12cm x H 2.5cm. Powered by USB, can directly connect to the household power supply. Features: A constant 55°C temperature, inner-ring heating, anti-scalding, waterproof and wear-resistant! Heating Coaster: Get a thermostatic heating coaster and keep the tea hot! Design: Made from strong tempered glass, this sturdy gadget will keep your drinks nice and warm! Functionality: Use this gadget to heat up drinks and utilise the 16W energy-saving power. Colours: Choose between a green, pink, or white coaster! thermostatic Heating Coaster | Living Social | Living Social