Product name: Hand pinch ball inflatable neck brace holder Material: Pu, Tpu, Cotton Flannel + Sbr Front Support Bracket. Product size (cm): 20*20*19 1. Used to relieve muscle tension and minor neck injuries. Support the neck and head to reduce pain 2. Applicable symptoms: prolonged use of computers or mobile phones; inability to concentrate at work for a long time; nervousness, poor blood circulation, neck stiffness, pain, etc. The function and main function of cervical collar: 1. Fix the cervical vertebra in the proper position and change the bad posture to maintain the normal posture. It rests the neck muscles through support, relieves muscle spasms and relieves local pain. 2. Limit the excessive movement of the neck to maintain local stability, reduce the traumatic inflammatory response caused by mutual stimulation and friction between the spinal cord, nerve roots, blood vessels and articular surfaces, and promote its dissipation and absorption. 3. Relieve and improve the pressure state of the cone space, reduce the strain and degeneration of the cervical intervertebral disc, help to recover as soon as possible, and avoid possible trauma 4. Correct the imbalance of internal and external balance of the cervical spine, prevent the disorder, dislocation and dislocation of the facet joints, so as to maintain the stability of the cervical spine sequence and between the vertebral bodies and joints, and strengthen the support of the neck