Slendertone system is the future of body toning & wellness giving you the body shape you desire... Belt fits waist size 24-4461-112cm. 99 intensity levels for strength & definition. 7 programmes deliver intelligent training progression for maximum results. Clinically proven to deliver visible results from 4 weeks. Handheld controller compatible with Slendertone Arms & Bottom garments sold separately. In-built rechargeable battery