Made of borosilicate glass and is guaranteed to withstand temperatures of upto 300 degree centigrade Can be safely used in the microwave oven fridge freezer and dishwasher Unlike plastic and melamine will not leech chemicals into your food even over repeated usage Non porous glass will not absorb stains or odors Color: Transparent Material: Glass Package Contents: 1-Piece Mixing Bowl (500ml) and 1-Piece Mixing Bowl (1.3-Litres) Warranty Information: 2 years warranty against manufacturing defects