First, this package was left on the side of the road and not delivered to my house. Second, the first time I used the machine it worked really well. The next two times I tried to use the circulating cold ice machine, the pump would not pump cold water through the tubes to the pads. I had rotator cuff surgery this past Wednesday and was really counting on this Polar Vortex equipment to work. Now all I have is just a really expensive ($179.00) ice bucket!! I ordered this equipment online from WALMART from PAIN MANAGEMENT TECHNOLOGIES, AKRON OHIO