Wide range rigid cuff is easier to use than older style cuffs and fits most arms. Clinically tested to ensure accurate results. 100% latex free, durable, easy to clean. New and improved Velcro is quieter and easier to pull apart. Fits all Microlife Automatic Inflation Blood Pressure Monitors. Longer tube adds convenience. Easy to adapt to monitor. Fits arms 8.7 inches to 18.1 inches in circumference (standard cuff fits 9.5 inches to 13.25 inches).