he fabric is flocking and its inner is made of latex, it is soft and flexible so it can make you feel comfortable.
1. Put it around your neck.
2. Screw the valve and put the steel ball into the capsule.
3. Fill it with
You can put it around your neck and then fill it with air until you feel comfortable. It can accelerate the blood circulation around your neck, relieve the pain and help you fall asleep. It has an ideal structure and long-lasting effect and is very portable to be carried.