Back Belt Female Small Medium Light Grey Obusforme Jobst Ultrasheer 30 40 WaistHi Quantifies specific dB and frequency 16 7136 Quantifies specific dB and frequency hearing loss with precision testing * Offers a full range of frequencies and intensity levels * Frequency modulated stimulus mode for reliable results with children and elderly patients * 10 lb * One piece internal casting cast iron with Size Specific Ergonomic Handles and heavy duty color cover * Weights sold individually Designed to promote proper posture and good body mechanics to help maintain a healthy back * Can be used while lifting pushing pulling walking exercising and repetitive bending or twisting * The ObusForme Back Belt comes in four sizes specifically tailored to the shape of the female physique * Size Sm Med fits waist circum 26 32 * Conforms and supports the lower back promoting muscle relaxation and proper alignment of the back * Built in ventilated lumbar pad provides additional support to the lumbar area * Breathable nylon mesh wrap with adjustable hook and loop front closure holds the belt in place * Lightweight