Strong hook and loop on the waist belt is and easy to wear and take off Specications: Condition: 100 Brand New Item Type: Posture Correction Belt Gender: Unisex Material: Lycra Polyester Color: ,Blue Optional Size: S, M, L Size S:Suitable waist 38-58cm,Suitable height 110-145cm, Suitable weight 15-27KG M: Suitable waist 50-65cm,Suitable height 130-155cm, Suitable weight 27-37KG L: Suitable waist 58-72cm,Suitable height 135-165cm, Suitable weight 37-45KG Package included: 1 x Posture Corrector Dear Sir and Graceful Lady: I'm glad you can come to my store, it's an honor to have you. I hope the products in my store can satisfy you. If you need, you can send an email to ask, I will be happy to answer it for you. If you don't understand anything about the product, please give me a chance to answer your questions. I hope you have a great time shopping in my store! The world is so big with so many landscapes. Hope you can enjoy the beautiful scenery more! I wish you a happy life, happy every day!Can help to prevention of myopia occurred, it will gently pull back the shoulders, the neck and head are straightened while correcting the spine, this will gradually restore a reasonable distance with the eyes and correct pseudo-myopia. Adopting high quality material, which is breathable, and comfortable to wear. Ergonomics opposite direction strengthen type design will get better effect, detachable and adjustable shoulder pad will ct your shoulder or axilla from damaging cased by friction. Help to balance stress on the shoulder, back, waist, abdomen, relieve muscle fatigue, and ct the waist, back and spine. Providing support for your shoulders and back, which will help to prevent humpback and curvature of the spine, correct poor postures to keep a correct sitting, standing, walking posture.