The Blue Jay Elite Healthcare Products Cuff-it Large Adult Blood Pressure Cuff Fits Arms 11.8 - 16.5 In Circumference And Is To Be Used With The Blue Jay Elite Healthcare Products Perfect Measure Line Of Blood Pressure Units * The Cuff-it Large Adult Blood Pressure Cuff Features A D-ring And Is Properly Contoured For Accuracy And Comfort * Convenient Cuff Placement Directions Are Imprinted Directly On The Cuff * For Use With Bj120105 Or Bj120100 * Cuff Measures 22.4 X 5.0 And Fits Arm Circumferences 11.8 - 16.5 *