Specification Product name: Constant temperature heating coaster Material: ABS+electronic components Powering method: USB plug-in Line length: 0.9 meters Rated power: 20W Input: 5V/2A Product size: diameter 4.4in Product thickness: about 0.94in Product color: green Heating plate diameter: 3.4in Number of temperature levels: three levels/55 degrees/65 degrees/75 degrees Color box specifications: 4.7*0.9*5.5in
