Welch Allyn one-piece, two-tube blood pressure cuffs eliminate the need to ever remove, clean, or replace a bladder. They are manufactured using the industry's only fully automated technology, meaning higher quality and economy. FEATURES: ?? Made of nylon -- 50% lighter and stronger than traditional cuff-and-bladder combinations. ?? Designed to last 100,000 cycles. ?? A convenient one-piece design delivers dependable, accurate results. ?? All range/index markings on outside of cuff make it easy to size all of your patients. ?? Antimicrobial treated to help prevent the growth of bacteria. ?? Latex free. ?? Arm circumference range: 32.1 to 43.4 cm. ?? Large Adult, Size 12.