The Pyrex Hot/Cold Unipack was designed for the Portables line of Pyrex products where either heat or cold is required. This pack can be either microwaved or frozen. There are many other applications of this product such as for use in lunch boxes or bags. Since they are flexible they will fit many needs

• Is Discontinued By Manufacturer ‏ : ‎ No
• Package Dimensions ‏ : ‎ 11.1 x 8.27 x 4.21 inches; 7.56 Pounds
• Date First Available ‏ : ‎ November 12, 2018