Large size heating pad and it can be put into a washing machine.
Since I use this on my lower back, it is great that it is so large!  I enjoy the softness of the cover, which is a part of the heating pad. To wash it, you just disconnect the power cord, from it. The pad feels flexible and I can easily wrap it around my knee. The controls are easy to read and use. It is nice that it has a setting for 2 hours, before it shuts off. Once it shuts off, the red light will continue to blink, until I completely turn it off. Nice reminder that it is finished with the heat. The cord is long, so it can reach well. Satisfied with this product and would buy again, when needed!
Rating: 5 stars