Features: 1) Soft retention after being frozen 2) Unlimited repeat of use 3) Can correct vision of short-sight or far-sight, no troubles of wearing glasses 4) Can subside black eyes and wrinkles of eyes and keep eyes young and beautiful 5) Can relieve fatigue and recover readily 6) Can reduce overburden of brain, such as migraine, insomnia and neurosism 7) Can be used to relieve high fever by placing cold multi-eye mask on brow 8) Used after put in icebox 4 to 10 degrees without any poison and side effect for safe use 9) Freezes eye mask in icebox for an hour before use and then moves out 10) You can wear the eye mask for about 10 minutes