This reusable hot/cold therapy pack is designed to help soothe muscular discomfort and help to reduce swelling and bruising. The hot pack function will assist in increasing circulation, with temporary relief to muscle aches, back pain, sinusitis or menstrual cramps, whilst the cold pack will assist in temporarily reducing swelling, toothache, headache and fever. Easy to use with instructions printed on the product; simply microwave for approximately 30 seconds or immerse in boiling water for 4 -10 minutes to activate the hot function, or store in the freezer until the gel is frozen (approximately 1 hour) to use as an acold pack. Features and Benefits Simple to heat or chill for versatility of use Clear instructions on the pack make the product simple to use Reusable product for durability and longevity Typical Applications Medical