Correct your posture prevent and improve hunchback when you wear this Smart Reminder Back Posture Corrector. Develop posture memory when you wear it for 1-2 hours a day. It's suited for everyone - children/ teens/adults.

• Material:  Silica gel
• Specifications:
• Size: 13.7 x 16.7 cm
• Charging time: 1.5 hours
  
• Lifetime: 90 hours