Review (4/5): Neat!
These masks are awesome! They are easy to use. Just take them out of the package and carefully separate the loops for your ears.
It does take a few minutes to heat up. The heat stays at a comfortable temperature and does not burn. The smell is relaxing (lavender and a hint of menthol).
I just wish they stayed hot a little longer (they seem to last about 20-30 minutes and then the heat fades). You get ten masks in the box.