Welch Allyn DuraShock DS45 Integrated Aneroid Sphygmomanometer with Size 11 Adult Cuff and Case Category_Diagnostic/Diagnostic Sets The air release valve is

The air release valve is conveniently regulated by finger-tip control

The handrail also serves as handle when the scale is folded

Small - provides excellent view of fundus through an undilated pupil

complete interchangeability

Welch Allyn DuraShock DS45 Integrated Aneroid Sphygmomanometer with Size 11 Adult Cuff and Case Category_Diagnostic/Diagnostic Sets The air release valve isWelch Allyn DuraShock DS45 Integrated Aneroid Sphygmomanometer; Gear Free, Shock Resistant, Laser Engraved Dial, 10 Year Calibration Warranty; Premium Inflation Bulb and Valve, Zipper Case; Size 11 Adult, FlexiPort Reusable, 1 Tube Cuff Part Number: DS45 11C GTIN: 00732094084498 Warranty: TEN YEAR WARRANTY