Product Description   Manual Blood Pressure Monitor(B.P. Appratus Mercury) – Traditional desk mercurial sphygmomanometer in the aluminum painted case with self Locking device, with adult Velcro cuff and metal D ring, Inter5nal graduated glass scale With inside diameter of 3.5 mm and a clear reading glass scale. On and OFF mercurial Tap for measuring range 0 to 300 mmhg air releases at closed tap max 4 mmhg per minute Graduated scale from 2 mmhg to 2 mmhg with bigger botches graduated every 10 units Single Packing in carton box.