For shipping, it will be sent without a box to keep it within 3cm. Instructions are included. * New and unused. * Immediate purchase is welcome. [Product Description] Securely fix with a light pull of the string. Comfortably correct your posture and instantly solve your back pain. Uses a pulley system for easy, one-touch adjustment with little force. Improves posture, strengthens core with abdominal breathing, and prevents back pain. You will feel that this is a belt that "makes your body happy." Also suitable for compression training and draw-in dieting. Can be washed in a laundry net.