Description:Featuring its even heating and constant temperature design, this product not only can slow down the cooling speed of hot coffee, but also can heat your coffee up, which is multi-purpose and widely applied.Since it has design of three-level temperature adjustment, you can heat your cup to the temperature you want, which can be used to heat your milk, tea, coffee, etc.Made of ABS material, this product is durable and long-lasting.The length of this product is 13cm, width is 11.7cm, and thickness is 2.3cm.It is suitable for schools, dormitories and offices, which is easy to use.Item Name: Heating CoasterMaterial: ABSVoltage: 5V Current: 2A Power: 10W Features: Ultra-thin, Safe, Anti-skid Timing Function: 8 Hours Timer Shutdown Power Supply: USB Charging Temperature Level: 55 Degrees, 65 Degrees, 75 DegreesSize Details: Inner Diameter: 7.8cm/3.07" (Approx.) Size: 13cm x 11.7cm x 2.3cm/5.12" x 4.61" x 0.91" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Heating Coaster 1 x User Manual (in English and Chinese)