Come and see our amazing products. Back Brace reminder with smart vibration, Provides smart back support,with automatic memory function, smart sensor, when the hump bends more than 25degree, it reminds you to sit up or stand upright, and vibrates.Correct posture scientifically.Form muscle memory, cultivate upright habits, exercise shoulder muscles, relieve shoulder, neck, and upper back pain. Wear it for 2 hours a day and use it for 3 weeks to improve your hunchback and make you more upright, confident and beautiful.the shoulder strap can be adjusted according to the body,suitable for adults and kids. Pls confirm further with us if any query about packing info, inventory status and time schedule.