Feature: 1. NECK PROTECTION: Long term use can protect the neck and relieve headaches caused by cervical strains and sprains 2. SEPARATE DESIGN: Adopting a separate design, the height can be adjusted freely according to the height of the user's neck 3. COMFORTABLE and BREATHABLE: Multiple holes can provide good ventilation and provide comfort during long term use 4. ERGONOMIC DESIGN: The ergonomic design is more comfortable and stable to wear, and the tightness can be adjusted freely to prevent pain caused by swinging 5. SCOPE of APPLICATION: Suitable for apparent effects on neck pain caused by long term work, study, or driving Specification: Item Type: Cervical Collar Product Material: PVC Product Size: M: Approx. 54cm/21.3in, Suitable for Adults Weighing Less Than 50-80 Kg, Suitable for Adults with a Neck Circumference of 32-37cm/12.6-14.6in L: Approx. 59cm/23.2in, Suitable for People Weighing More Than 80 Kg, Suitable for Adults with a Neck Circumference of 37-43cm/14.6-17.0in Product Use: Suitable for Cervical Spine Fracture Fixation, Cervical Spondylolisthesis Position, Reset Fixed, Etc.. Package List: 1 x Cervical Collar Note: 1. Wear It According to the Comfort of the Individual, Not Too Tight2. when There Are Stains on the Surface of the Product, You Can Clean It with a Clean Cotton Cloth to Remove Dust and Dirt3. the Product Can Be Washed, It is Recommended to Wash by Hand. the Water Temperature During Washing Should Not Exceed 40℃. Please Use Neutral Detergent to Avoid Prolonged Soaking to Prevent the Fabric from Aging. After Washing, It Should Be Dried Naturally and Not Exposed to the Sun.4. the Product Does Not Need to Be Ironed, Please Put It in a Dry and Ventilated Place when It is Not Used for a Long Time