Foot Warmer -Cold Knee Brace Bag Ice Bag Highlights Generic Brand Cold Knee Brace Ice Bag Bag Description: Hot compress: effectively relieve arthritis, physiological discomfort, stomach discomfort, cervical spondylitis, sciatica , waist discomfort, stomach pain and other pain. Cold compress: headaches, fever, trauma, hemostasis, fever, toothache, minor burns, sprains, fatigue, etc. Made of high quality nylon, excellent protection, strong and heat resistant. Good stretch flexibility and comfortable fit. specification: Material: Nylon Size: approx. Gel bag 23x15.2cm/9.1x6.0inch Each strap 13cm/5.1inch Quantity: 2 Pieces Package includes: 2X hot and cold knee pads Note: Hot compress: Put the bag in the microwave oven and heat it to medium temperature for 2 minutes. Then feel the surface temperature by hand. If the temperature is not enough, you can heat it for 30 seconds each time until it reaches the ideal temperature, or put the bag directly into boiling water. After 5 minutes, it can be used after being fully heated. Cold compress: It can be used within 60 minutes in a freezer or refrigerator-freezer (-18C to -20C), or in the refrigerator for emergency use.