The T-420 Hot/Cold Gel Packs are sturdy, resuable gel packs. When frozen, they remain flexible allowing users to achieve a better contour to the face. Heat them for more post-operative therapy options. Due to the gel consistency, this pack will not settle when placed in any direction, thus ensuring uniform hot/cold therapy. Use the Hot/Cold Gel Packs with a variety of Cool Jaw facial wraps or on their own. This 3″ x 6″ slim gel pack arrives with preprinted instructions for freezing and cooling. These Hot/Cold Gel Packs are designed to be used with a variety of Cool Jaw facial wraps or on their own. Includes: (48) 3"x6" Ocean Blue Hot/Cold Gel Packs