The Breg Polar Care Wave ice pack (pack of 4, 8, or 12), Reusable Ice Cubes are an excellent accessory for your cold therapy machines and cryotherapy devices.
Simply add water, seal, freeze and rotate. They help keep your cooler water colder by several hours which is a huge plus when you are receiving from a total knee surgery, rotator cuff surgery and total hip arthroplasty.