Duralex (Pack of 4) Picardie Amber Tumbler 250ml - Set of 4 Water/Juice Glass Set  (250 ml, Orange)

Since 1945, Duralex has been a pioneer in tempered glass technology, a process in which we are the industry leader. Our factory in La Chapelle-Saint-Mesmin was the first in the world to produce tempered glass tableware. Through constant investment and commitment to quality, Duralex has achieved a level of excellence that drives the brand s success around the world. Our company is indisputably recognised as the leader in tempered glass. What makes Duralex glass so strong is the tempering process. It consists of rapid ventilation cooling of the entire glass product, which has been previously heated to a temperature of approximately 700 C. This treatment creates controlled stresses in the glass that improve most of its physical qualities: resistance to mechanical stress and thermal shock (sudden temperature change). This makes Duralex glass at least 2.5 times more resistant to mechanical stress than an annealed (standard) glass product. It is resistant to thermal shock of at least 130 C. Key Features: - Made in France since 1945 - Tempered Glass - 2.5 times stronger than the normal glass - Resistant to thermal shock of at lest 130 C - Dishwasher safe - Microwave safe - Freezer safe - 8.7 x 9 (cm) - 250ml What's in the box 4 x Tempered Glass Tumblers