Comfortable Arm Cuff: Made from high-quality nylon cuff fabric and a non-toxic TPU airbag, our blood pressure arm cuff is durable and gentle on the skin. The soft Velcro ensures a secure yet comfortable fit. Compatible Design: This large replacement cuff fits all blood pressure monitors with connection holes of 0.27/0.23/0.19/0.18 inches (7mm/6mm/5mm/4.6mm). It's universally compatible with most brands, making it a versatile choice for home monitoring. Comprehensive Package: Includes the extra-large replacement cuff and various sized connectors for broad compatibility. A quick user guide is also provided for easy setup and reference. Extra Large Adult Blood Pressure Cuff: Specifically designed for adult arms ranging from 22-52 cm in circumference, ensuring accurate readings every time. Satisfaction Guarantee: While this package does not include a blood pressure monitor, we stand by our product's quality. If you encounter any issues, please contact us on Amazon for prompt assistance and resolution.