This is an unsafe product
I bought these mitts for my wife who suffers from arthritis.  She placed her hands in the mitts with both resting in her lap one on top of the other.  Soon she smelled hot plastic and was shocked to fine that the mitts had melted together.  They were promptly unplugged and discarded. Fortunately she suffered no injury. Sale of this product should be discontinued before someone is injured.
Rating: 1 stars