• Easily heated in your microwave or cooled in your refrigerator or freezer
• Re-usable
• Safer than gel
• Filled with non-toxic liquid
• Microcore Hot/Cold packs distribute the heat or cold evenly
• Can be placed in any type of container for continued heating or cooling
• One year limited warranty
• 3 years or 300 use lifespan
• Maximum Heat time 1000 watt or less 3 min 45 sec
• Maximum Heat time over 1000 watt 2 min 30 sec