The Lys Bowl Is The Perfect Solution For Storing Food In And Using As A Lunchboxtoughened Glass, Resists To Thermal Shock Of 130Cdiameter: 23Cm Height: 9.3Cmpart Of The Classic French Duralex Rangedishwasher, Microwave, Freezer Safeduralex Is The Specialist In The Design And Production Of Tempered Glass Tableware Since 1945. More Than Ever, It Is Synonymous With Toughness, Design And Everyday Practicality.these Glass Lunchbox / Food Bowls Are Perfect For When You Have Food Left Over Or Are Preparing Meals And Freezing Them.the Bowls Are Extremely Strong And Are Tempered By Heating Them To 700 Degrees. Stackable So Easy To Store. If The Glass Does Break Then It Is Designed To Break Into Blunt Fragments, Much Like A Car Windscreen.dishwasher And Microwave Safe, Shock And Chip Resistant. Material:Glass.