Automatic: Automatic induction heating, automatic heat preservation when the cup is put down, automatic blackout when the cup is picked up.Portable: Its size is small, and it does not to take up much space, very portable.Material: It is made of the ABS and tempered glass material, that is easy to clean.Switch: Microgravity induction switch is easy to use, safe and practical.Application: It is suitable for heating ceramic cup, glass cup, and etc.Specifications:Product name: Heating CoasterColor: BlackPlug: USPower: 16WRated voltage: 220VMaterial: ABS + tempered glassApplication: Suitable for heatingSize: As below:About 115 x 115 x 20mm/4.53 x 4.53 x 0.79 inch(L*W*H)Power cord length: About 870mm/34.25 inchPackage Includes:1Pc* Heating CoasterNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 0.52 cm differences due to manual measurement.