Back Wrap Hot Cold Maternity Posture Support * Easy quick assembly 14283 * Easy quick assembly Ophthalmoscope head with lens wheel features 25 corrective lenses from 20 to +20 diopters * Otoscope head with removable 4x magnifying lens and insufflator fitting * Bayonet head locking mounts for secure connection to the battery handle * C cell powered battery handle with rheostatic on off switch * Auto clavable polypropylene ear specula in 2 The original moist heat pack designed for use in soothing sore muscles aches and pains * Designed specifically for relief of nagging lower back pain stomach cramps and leg arm or shoulder aches and pains * Adjustable strap can be comfortably secured in various positions on the body for complete mobility * Use it hot or cold * Filled with 100% natural organic grains * 20 when stretched the maximum length is 72