INSTANT PAIN RELIEF - Instant cold compress can immediately reduce pain and swelling. Use the cold compresses for swollen eyes, sinus pain, toothache, sore muscles, joint pain, headache/migraine, fever, inflammation, menstrual pain, breastfeeding pain , first aid, etc. also for sprains, bruises, bumps and other sports injuries. SAFE AND REUSABLE - Non-toxic, reusable ice packs are made of PVC polyester that won't rip, tear or puncture. Refillable ice packs can be used multiple times, regardless of cold compress and hot compress. Attention: Due to the pattern painted on the product, the ice packs may have some smell when they reach you. Solution: Before first use, open the cap and leave it outside for 2 days until the smell is gone. LEAKPROOF - Wide mouth for easy filling, secure screw cap to prevent leaks and spills (fill a maximum of up to two-thirds full as a hot compress). Baby and children in complete safety. The hot cold bag stays cold or hot longer than gel ice packs. Sweating is CONDENSATION which is a naturally physical phenomenon, not a leaky bag. EASY TO STORE EASY TO USE - flexible and drinkable, only 2.5 oz each. Just add ice cubes and a little water as a cold compress You can use it as eye ice pack, wisdom teeth ice pack, face ice pack, neck ice pack, shoulder ice pack, elbow ice pack, back ice pack, perineal ice pack, knee ice pack, foot ice pack, etc. WHAT YOU GET - Comes with a set of 4 ice pack packs instant, 6 inch, 2.5 oz each, plus Ice Pack Warp. Reusable wound ice packs can be used for children and adults. We are so confident in the quality of our first aid ice packs. ;