The OXD hot and cold reusable bag is very flexible and extremely easy to use. The package contains a bag with OXD gel (28cm X 14cm), reusable, cold and hot, and a textile cover with adjustable and resistant elastic band to help fix the bag in different areas of the body. For cold use: Recommended for reducing pain and inflammation caused by sports injuries, acute inflammations, rheumatic pains, swellings, hematomas, contusions, sprains, hyperthermia, muscle or joint injuries. Instructions for cold use: Place the gel bag in the freezer for at least 2 hours. It can be kept in the freezer until the next use. The gel remains perfectly flexible up to a temperature of -27 °C. For hot use: Recommended for non-inflammatory rheumatic pain, sciatica, lumbago, muscle pain, muscle tension, torticollis, rheumatism, hypothermia. Instructions for hot use: The reusable bag must be heated in water (max. +80⁰C) or in the microwave oven for 1-2 minutes (in a container with water). Maintains its viscosity when heated. non-inflammatory rheumatic pains (sciatica, lumbago, muscle pain, muscle tension). To avoid frostbite and/or burns, do not apply directly to the skin: wrap in the pouch from the set before use. Presentation form: 28cmX14 cm bag. ATTENTION: Do not swallow the contents, do not break the gel bag. Keep out of reach of children. For external use only.