NYRWANA DELIVERING SMILES IN INIDA Borosilicate Glass Double Wall Heart Shape Mug Coffee Tea Cup 150 ml (1 Piece, Transparent)Heat resistant: - 20 ~ 150 ℃, safe to use.Can be applied to tea, milk, coffee and so on.Double layer design, lovely shape.Thermal insulation, comfortable to hold.Is Microwaveable: No, Is Dishwasher Safe: No