The band is used as a treatment to correct and reduce the appearance of the face. It's ia V shape miracle natural shaping mask.  Exquisite face perfect trasformation. Thin double chin, strong face thinning, lifting and firming.  Micro-fixing and fixing to reduce wrinkles.  Material: Breathable nylon facial super thin mask. Made in P.R.C. How to use: Clean the face before use. Use it and take it out 30-50 minutes later.(The skin will be sweaty with heat.) Wash your face again. Notes: It is recommended to wear for 20-40 minutes at a time. If you feel uncomfortable, please remove this mask as appropriate.