Note: Please allow 1?2cm error due to manual measurement. Thanks for your understanding. specification: Item Type: Cervical Collar_x000D_Material: PP+Steel_x000D_Function: To correct forward tilt of neck, relieve compression of cervical spine, and correct wrong posture of cervical spine._x000D_Bendable Collar Size: Approx. 20 x 13cm/7.9 x 5.1in Features: 1Effective Support: A comfortable neck protector can limit the movement of the neck while providing ideal support for the neck and head. 2Stabilize Neck And Head Movement: Cervical collar brace helps recover from injury or surgery, while prolonging wearing comfort. 3Temporary Pain Relief: Neck brace can relieve pain and improve forward posture of head by training neck to understand sensation of correct alignment. 4Wide Application: Cervical collar brace is suitable for symptoms such as neck pain caused by long hours of work, study, or driving. 5Premium Quality Material: Neck Collar is made of PP+Steel, and exquisite workmanship, relieves pain without compromising your mobility. PackageList: 1 x Cervical Collar