Product name: Cervical Traction Disk-One HYUNDAI MEDICAL Function: It is a manual orthopedic traction device with air injection, designed to help stretch and relieve the neck. Use: According to the instructions in the image, the device is used by inflating and deflating the traction airbag and the neck angle adjustment airbag. It is recommended to use it for 20 to 30 minutes, 2 or 3 times a day.