3M™ Tegaderm™ Silicone Foam Dressing, 7 1 4 x 8 3 4 Inch, 1 Case of 20 Invalid Rings Unit * The SynchroSonic US 752 416700 Unit * The SynchroSonic US 752 offers the benefits of therapeutic ultrasound and high volt muscle stimulation for muscle rehabilitation prevention of muscle atrophy pain management and edema reduction * The panel design of the SynchroSonic US 752 provides simple operation of ultrasound and high volt muscle stimulation separately or in combination through the ultrasound transducer * The practitioner can precisely manage treatment with a selectable frequency range selectable independent on off surge duration and selectable pulse width * The US 752 produces pulsation tetanize surge and reciprocal output * The additional benefit of bipolar application eliminates the need for a single large dispersive electrode * Designed to promote patient assurance the treatment stop switch allows the patient to discontinue stimulator output at the press of a button * Soundhead Features and Options * All Amrex ultrasound transducers are lightweight ergonomically designed and sealed for underwater therapy * Amrex offers two soundhead faceplate sizes: The standard 2 Universal Charger Complete With Two Rechargeable NiCad Handles * Colored LED's indicate power to the unit and that the handles are seated in wells and charging * Comes complete with 2 3 Water resistant seal means dressing remains intact 7 1 4 x 8 3 4 inch sacral shape is good for lower back applications