To customers: life is full of surprises. Package Includes: 1 x Hunchback Corrector Item Name: Hunchback Corrector Material: PC Features: Non-irritating, Effective, Correct Posture Size Details: Gender Adult Size: 21.5cm x 16.5cm x 13.5cm Gender Kid Size: 21cm x 13.5cm x 12.3cm Specifications: There is no jamming of your neck with this hunchback brace, which can be adjusted in height and has a rebound design that does not compress your chest, giving you a very comfortable wearing experience. This hunchback corrector will correct your posture, stop your neck from leaning forward, reduce the pressure on your cervical spine, and return your body to its normal curve and to a healthier state. It is constructed of PC material. There are 2 genders and 3 colors for you to choose from. It is suitable for office workers, people with bowed heads, students, sedentary, etc. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. We strive for excellence. And hope you have a nice day!