Step Stool MRI Two Steps PVC 16 W x 25 D x 16 H Opthalmoscope Sets 5 W x 7 H Color:Yellow 5 W x 7 H * Depth of penetration * Arrows indicate the relative depth of ultrasound penetration between 1 MHz and 3 SYNCHROSONIC U 50 * The versatile SynchroSonic U 50 provides therapeutic ultrasound which may be applied separately or which may be combined with electrical stimulation simultaneously through the ultrasound transducer using an external electrical stimulator * The cable fault alarm system is an added feature of the U 50 * This system will detect improper transducer cable connection and or transducer cable damage * If such detection is made an audible signal will alert the practitioner * Delivers up to 20 watts variable or non interrupted power * U50 For Use with Combination Therapy * weight capacity Two Steps * Top step overall size: 16 W x 12 D x 8 H * Bottom step overall size: 16 W x 25 D x 8 H * 200 lb