brand new and high quality Features: Made of high quality material, solid, durable, soft and comfortable. Great back belt helps your muscles and spine to return to their natural alignment, which can correct your posture correction and relief back pain and soreness. High elasticity to keep shoulders back, correct scoliosis and other malformed spinal curvatures. Posture monitor function with vibration belt to remind you, help with train your muscle's memory. Back switch, even kids can operate it by themselves. Breathable, even can be worn in summer. Perfect tool for forming a good habit, suitable for both adult and kids. Specification: Apply for : Adult, Kids Gender: Unisex Material: ABS Battery Capacity: 500mAh Charging time: about 1 hour Working time: about 15 days Charging Method: USB Size: app.10 x 10cm / 3.93 x 3.93in Color: for Grey Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Posture Corrector Belt 1 x USB Charging Cable(other accessories demo in the picture is not included.)