Hollister One Piece Drainable Beige Ostomy Pouch, 12 Inch Length, 1½ Inch Stoma, 1 Box of 5 Electrotherapy Single Channel * Continuous operation Color:Yellow Single Channel * Continuous operation or work rest prompts * LED visual display * Hand held portability * Carry Case * Convenient 9 volt battery with LED battery check * Easy to operate * Goal types include: Above Tone Below Tone Matrixed Audio Tone and A B Ratio for Dual Channel Systems * Accurate repeatable and durable * Custom twisted spring can easily withstand accidental dropping without affecting accuracy * 4 centimeters of infinite handle adjustment for the most comfortable fit * Testing range on dual scale is 0 to 220 pounds * Unit comes complete with carrying case and norms (age 5 to adult) * Opening: 1½ inches (38 mm) A one piece