The material used to make it is enamel which is totally environmentally friendly.
The top of the cover is made of wood which is safe for you avoiding being burned.
Cup mouth is large enough for you clean it easily.
Type:Mijia youpin 500cc Mug
Inner caliber: 80mm
Outside caliber: 89mm
Wall thickness: 4.5mm
Materials: Environmental stoneware
Firing temperature:1250 degree
Weight & Dimensions Product Weight:480g
1 x Cup
1 x Cup cover
1 x User Manual