It fits around the chin and holds the neck firmly in place.
The core material has ventilation holes, so it doesn't get stuffy.
The height can be adjusted by shifting the two sheets up and down. Size: M
Suitable neck circumference (cm): 35-40
Height (cm): 8.5-10.0
Material: PE (polyethylene), nylon, PVC (polyvinyl chloride resin), cotton, rayon
Medical device number: 13B2X00187000027
