SLOTRE's hot eye mask provides a relaxing effect and achieves a comfortable feel. I received it as a gift from a friend, but I don't use eye masks, so I'm selling it unused. Operation has been confirmed without any problems. How about it as a companion for a good night's sleep? - Brand: SLOTRE - Type: Eye mask - Features: Hot eye mask - Color: White/Gray - Power: Button-type power switch Thank you for looking.