Product Name: OMRON Upper Arm Blood Pressure Monitor Cuff HEM-FM31-B (Fit Cuff) Product Condition: New, unused (only opened the box for photography). The box has some minor external damage, but the contents are unused and in excellent condition. Product Description: ・This is a replacement cuff for OMRON upper arm blood pressure monitors. ・Compatible models: HEM-7310, HEM-7320, HEM-7361, etc. (Please check the official website or the instruction manual of your blood pressure monitor for details) ・Arm circumference: 17-36cm ・Fit cuff type, easy to put on and less likely to slip.