3M Nexcare ColdHot Therapy Pack Flexible is a thermal pad made of reusable cold/hot gel. It relieves the pain naturally. Its gel is safe, non-toxic and 99% biodegradable. It is used in two ways: Cold to reduce edema, inflammation and pain relief, Hot to reduce pain and muscle spasms, relax and unwind. It comes with a high-impact Thinsulate microfiber cover for longer, constant temperature. Size : 11 x 23.5 cm divided into 3 parts of approximately 11 x 8 cm. Without latex. Read the instructions carefully before use. Cold : Place the pad in the fridge or freezer at least 2 hours before use. Put it in the protective case. Apply for a maximum of 20 minutes. Wait 20 minutes before reapplying. Hot :Hot water : Immerse the pillow in boiling water from the fire for a maximum of 90 seconds. Carefully remove the pillow and knead it to distribute the heat evenly. Use the pad in its case and apply it to the area to be treated. Microwave : Lay the pillow flat, set to 640W and heat for 2 x 30 seconds. Carefully remove the pillow. Knead to evenly distribute the heat. Always place the gel pad in the pouch provided or in a clean towel when applying to the skin. Use as long as it doesn't produce any discomfort. Once the pillow is at room temperature, warm it up. Do not use if you have sensitive or irritated skin or if you have known or suspected nerve or circulatory disorders. Monitoring of use in children and individuals with cognitive disabilities. Pregnant women should seek the advice of a medical professional prior to use. Never heat the pillows when folded, crumpled or icy. This can lead to a leak. Overheating will damage the freezer pad. Do not heat the product in an oven or grill. Not intended for continuous heating. Before use, check that it does not leak. Do not use if damaged : liquefaction of gel / perforated pad will cause gel to leak. If the power of the microwave is unknown: use the lowest setting (defrost mode) and heat in cycles of 30 seconds. Be careful when removing the hot water from the hot water or microwave with your bare hands. If the gel pad is too hot, wait for it to cool before applying it to the body. Never use the gel pad directly on the skin. Do not sit on, lean on or apply excessive pressure to the freezer pack as the freezer pack may break and/or leak. Do not use while sleeping. Care must be taken to avoid frostbite and damage to superficial nerves. Excessive heating of the gel pad can cause burns. The heat can be pain relieving enough to cause local burns. In case of complaints, the application should be discontinued. If the problem persists, consult a doctor. Check with your doctor or pharmacist if you are not sure. Hand wash the cushion with a mild detergent, but do not use alcohol or other solvents. Always keep in a dark place. Indication: Relief of physical pain.