9"-21" Blood Pressure Cuff Arm, Wide-Range Extra Large Replacement Cuff Fits M L XL X-Large Big Arms, 6 Sizes of Connectors Compatible with Omron and Other Brands BP Machines (BP Cuff Included Only)Brand: AQESO Color: Gray Features: Adjustable Wide Range Replacement Cuff (9" 21"): By featuring an integrated D ring, the replacement blood pressure arm cuff is easy to self adjust for greater accurate readings. The extra large cuff is designed to fit arm circumferences from 9" to 21" (M L XL Sizes). The specifically designed wide range feature can provide the best experience for all family members with different size needs. Design for Compatibility: