Silver Series DS45 Integrated Pocket Aneroid 4 Cuff KitUnsurpassed reliability with a unique integrated, cuff mounted design and gear free DuraShock technology. This integrated style gauge with its cuff mounted design is compact and lightweight for patient comfort and ease of use. In use, the gauge rests on the outer part of the patients arm. With gear free DuraShock technology, you can count on the robust design of the DS48 Integrated Aneroid to remain in calibration longer than traditional aneroids,