McKesson Silk Like Cloth Medical Tape, 1 Inch x 10 Yard, White, 1 Box of 12 Pen Pencil Aids Microprocessor controlled * Professional four channel Color:Yellow Microprocessor controlled * Professional four channel electrotherapy device that provides IF 4 Pole IF 2 Pole Russian EMS and TENS waveforms with two separate timers * The portable design lets you take it to your patient or keep it at the clinic * It'∞⁄s easy to use and is up and running within minutes * The Quattro 2 Elasticity allows for easier removal of pads and re dressing without removing the 18 1 2 inch x 25 yard small head tubular bandage Tape gently removes from the skin to prevent discomfort Non sterile design