1. Springs.
2. The interior of the top side is designed to be a comfortable support to your chin.
3. The collar has grooves on the neck side to give an airy, cool feeling.
4. The springs are located in so-called screw cups which allow you to adjust the height of the collar.
FACTS
Eezyflow is intended for adults who can put on and off the collar themselves. Use of this sleep collar is not recommended if there is less than 8 cm between the collarbone and jawbone.