MICROWAVABLE AND REUSABLE. PROVIDES SAFE AND EFFECTIVE HOT OR COLD TREATMENT. COLD THERAPY CAN BE USED TO HELP RELIEVE PAIN AND REDUCE SWELLING CAUSE BY: SPRAINS, STRAINS, INSECT BITES, BUMPS AND BRUISES, MINOR BURNS, SIMPLE HEADACHES AND MUSCLE ACHES. HEAT THERAPY IS IDEAL IN HELPING RELIEVE PAIN ASSOCIATED WITH: MUSCLE ACHES, STIFFNESS, ARTHRITIS, CRAMPS. THE SOFT OUTER POUCH ELIMINATES THE NEED FOR A TOWEL OR COVER. LATEX FREE MATERIALS. 1 SLEEVE, 1 HOT & COLD COMPRESS. 4 IN X 10 IN (10.1 CM X 25.4 CM).