13 x 5 x 4 inches ; 5 pounds

Make sure this fits by entering your model number.
SAFE, NATURAL LONG-LASTING HEAT – Odorless, Disposable, Single-Use Item, Do Not Apply Directly to The Skin. TSA Approved. Made in the USA using domestic and imported materials.
TO ACTIVATE – Remove warmer from outer package, shake to activate. Warmer heats up in 15-30 minutes. If heat decreases, expose warmer to air and shake. After use, dispose with regular garbage. Ingredients will not harm the environment.