Nylon cuff & bladder, adult, two tube (845-12ABK-2). Fits size 34-50 cm/13.3-19.6 inches. Durable nylon construction. Exclusive Size Guide™ marking system. Latex free inflation bladder. For use with traditional pocket, clock, or mercury style aneroid gauge.  Two Year Manufacture Warranty. Luer connector (#891F) not included.