1. Durable material of the posture corrector: The back straightening corrector is made of wear-resistant stitches. It is washable and has a soft touch. There are ventilation holes on the shoulders, allowing you to stay breathable and comfortable anytime, anywhere. It can help you correct your posture. 2. Adjustable size of the posture corrector: The back corrector is equipped with an extra-long Velcro strap, and the size is adjustable. You can easily put it on and take it off without others' help. It is suitable for people of different body types, regardless of gender, age, or body shape (suitable for those with a height of 155 - 190 cm and a weight of 40 - 95 kg), and can meet the needs of most people. 3. Shoulder strap-style posture correction: The posture corrector can stretch the shoulders and provide back support. It can improve the problems of hunchback and forward head posture caused by bad postures. It allows you to keep your shoulders and spine straight in daily life, and work and study with a more confident posture at any time. 4. The back straightening corrector can relieve muscle soreness: If you often feel pain in your neck, shoulders, and back during work or study, you might try the back correction belt. Appropriate posture adjustment and shoulder stretching can reduce the pressure on important parts, relieve back and neck pain, and also relieve collarbone pain. 5. Service of the back straightening corrector: If you have any questions, please feel free to contact us, and we will reply to you within 24 hours.