ThermaFreeze BLACK ICE Select Edition Heavy Duty Reusable Ice Pack Sheets - 5 XL 10x15 inch sheets (4x6 cells each) - Superchilled Reusable, Flexible, Non-Toxic - Lasts hours longer than ice SuperCold ThermaFreeze BLACK ICE reusable ice packs, 3 ply construction, flexible when frozen, can cut to size; made in USA. BLACK ICE removes any heat and transfers freezing ice cold temperatures. Flexible when frozen - contours around food, coolers, body parts - not rigid like ice gel packs Use it for cold storage, cold transport, or for cold therapy and pain relief. BLACK ICE is colder than any other ice sheets. Supercooled ThermaFreeze BLACK ICE - cut to any size, used in medical and transportation industries. Cut and use with Ice Wraptor Ice Wraps for mobile joint and muscle pain relief Ships flat - just soak, freeze, and use - non-toxic; lasts longer than ice packs with no drips ThermaFreeze BLACK ICE reusable ice packs, 3 ply construction, made in USA Flexible when frozen - contours around food, coolers, body parts - not rigid like ice gel packs Use it for cold storage, cold transport, or for cold therapy and pain relief. ThermaFreeze BLACK ICE is the most freezing cold ice sheet product on the market Cut to any size, used in medical and transportation industries. Ships flat - just soak, freeze, and use - non-toxic; lasts longer than ice packs with no drips Provides cooling without becoming wet so you can keep them on as long as necessary. They also don&#039;t drip like ice so they don&#039;t mix with the food or soak the product needing refrigeration. 1 ounce of ThermaFreeze BLACK ICE material (a 4 x 6 cell, 10 x 15 inch sheet) converts to 1.5 pounds of frozen ice packs! Hydration takes only seconds per sheet and is performed by soaking or spraying the cloth side of the pad with water. Once hydrated, it is ready to be placed in a freezer and will be fully frozen in approximately 2 hours. Soak, freeze, dry and use - non-toxic; lasts longer than ice packs with no drips Ships flat, stores flat You can reuse the sheets by refreezing or rehydrating first. The packs may shrink over 10-15 days due to evaporation.