... 2,easy to clean,reusable 3,oem can accept Double Layer Glass Mug Product description:1,Material is borosilciate glass ... for drinking chinese tea3,transparent ,can see the tea very clear,which will give us a good mood when we ... print on the inner wall of the cup which looks very nice5,we accept small order ,sample offered, but we ... to regulate the degree or lightnessShow product: Double Layer Glass Mug