Sleek And Strong, The Amboise Glasses Are Perfect For The Home And Bar / Restaurantstoughened Glass, Resists To Thermal Shock Of 130Cdiameter: 7.7Cm Height: 19.8Cmpart 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.the Amboise Range Is Ideal For Both Homes And Restaurants With Their Elegant, Sleek Design.these Glasses Are Extremely Strong And Are Tempered By Heating Them To 700 Degrees. Stackable So Easy To Store. If The Glass Does Break Them It Is Designed To Break Into Blunt Fragments, Much Like A Car Windscreendishwasher And Microwave Safe, Shock And Chip Resistant. Material:Glass.