Back & Lumbar Support Cushions Our Posture Corrector with Adjustable Pulley is true fit Men and Women: 1. Make you look younger and confident after the use. 2. Reduce the onset of back pain, neck pain or shoulder pain. 3. Help you relieve discomfort and soreness in your back and shoulders. 4. Improve the symptom of kyphosis, curvature of the spine and slumping by correcting your wrong posture. 5. Great natural posture is important for aligning lumbar lower back to help relieve pain and Symptoms such as sciatica, lordosis, and scoliosis. Pulley design Pulley design can easily fixed lumbar vertebra, quicker and effortless. lengthen design comprehensively correct and protect your spine, does not affect chest and abdominal breathing, no limiting to the motion of the shoulder and hands. Synchronous gear design makes your shoulders even by force. Material Made of breathable velvet suede fabric with honeycomb holes design, more breathable, curved plastic back plate deign with good plasticity, perfect fit. Soft chest pad makes you more comfortable. Finger pull ring design, adjustable easy to wear. Cycle of usage: 1.The first week: Vertebral adaptation period, can not be too loose or too tight. 2.The second week: Adjust the tightness slightly, makes your spine get used to it. 3.The third week: Suggest wearing two hours every day! Please measure your waistline with a tape and check our size chart before your purchase. If your waist fits two of the size, we advise to choose the big one. Size: S: Suit for abdominal circumference 60-75cm/24-30inch M: Suit for abdominal circumference 75-90cm/30-35inch L: Suit for abdominal circumference 90-105cm/35-41inch XL: Suit for abdominal circumference 105-120cm/41.3-47.2inch XXL: Suit for abdominal circumference 120-135cm/47.2-53.1inch XXXL: Suit for abdominal circumference 135-150cm/53.1-59inch Package include: 1Pcs * Back Brace Posture Corrector