Ventilated support plate for increased coolness and comfort. Two parts of self-adhesive support plate can freely adjust the height between chin and neck. Double tension structure for fixation effect. White is not easy to get dirty and can be washed with water. Indication: perfect use for prevention and complementary treatment of cervical vertebral syndromes, such as cervical spondylosis and cervical muscle strain etc. and neck support for cervical spondylosis rehabilitation after surgery. Color: White Material: plastic Product size Your neck size: S 37-42cm / 14.6-16.5inch Note: Dear, can be adjusted freely, if your neck size is less than 37cm (14.6inch), you can choose S size, thank you Item Type: Support & Protection Effect: Bone care neck for man woman lady child: neck support for health care Package contents: 1 * Neck support Only the above package content, others are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.