Goods Land Hot Eye Mask USB Powered 9-Level Temperature Adjustment, 4-Level Timer This eye mask gently warms up with the heating of the internal heating pad and can be used repeatedly. Temperature and timer settings can be adjusted with the easy-to-use remote control. The back is made of fluffy brushed material and is lightweight at approximately 80g. It was a gift and has been hardly used, so it's in beautiful condition with no scratches or stains. Operation confirmed.