I had bilateral knee replacement surgery on Nov 7, 2014. Physical therapy starts right after surgery, and it continues along with daily exercises after you return home. Icing your knees in required after each PT and exercising session. I first used a wrap around cold pack, then tried an ice bottle, and two sizes of cold packs. None of the aforementioned seemed to cool my knees sufficiently. I ordered two of these cold packs (12.5 x 18.5) as they were large and heavy. They worked perfectly to cool down my knees and are definitely worth the cost. I wish I had these when I first returned home from the hospital. Anyone having knee replacement surgery should consider purchasing these cold packs before you return home from the hospital.
Rating: [5 of 5 Stars!]