DESC: The universal Double Tube enables compatible cuff exchange with all MDF and other major branded blood pressure systems with double tube configuration Constructed of high-molecular polymer 210 Denier Nylon which is abrasion, chemical (chlorine and peroxide), and moisture resistant Sized to meet American Heart Association recommendations The Inflation Bag is constructed of crack & stick-resistant, high-density hypoallergenic latex-free PVC 100% Latex Free