Duralex Made In France Lys 5-Piece Square Bowl with Lids Set Lys 5 piece set includes a 5.4 ounce square bowl, a 10 ounce square bowl, a 20 ounce square bowl, a 36 ounce square bowl and a 68 ounce square bowl The original french tumbler, made by the company that invented tempered glass Duralex is 2-1/2 times more resistant to breakage, sudden thermal shock and chipping than normal glass Duralex glass is very hygienic: it is non-porous and does not absorb liquids, colors or flavors Dishwasher, fridge and microwave safe; products maintain the original look for years