Duralex, Prisme Tempered Clear Glass Tumbler Set of 6 pcs, 22cl (220ml)
- Microwave Safe
- Freezer Safe
- Color: Transparent
o THE TEMPERING PROCESS IS OUR TRADEMARK The tempering process is what makes Duralex glass so tough.
o Glass that has been heated to around 700¬∞C is suddenly cooled by cold air ventilation.
o This treatment creates controlled stress in the glass which improves most of its physical qualities: resistance to mechanical stress and thermal shock.
o Duralex glass is 2.5 times more resistant than annealed glass products and resists thermal shocks of up to 130 C.
o It is the same tempered glass used to make windscreens which, in the event of an impact or accident, shatter into thousands of non-cutting pieces.
Package Dimensions: 8.7 x 6.6 x 3.5 inches