This compact and lightweight Allyn DuraShock DS44 sphygmomanometer is durable and easy to use. It is latex free and features DuraShock technology that gives this device a longer life than traditional aneroid sphygmomanometers. The DS44 model is part of the Bronze series and integrates directly into the Flexi port sleeve. Aneroid Sphygmomanometer Integrated Design Pump System with Certified Accuracy 2 Latex-Free Cuff Options 5-Year Adult Calibration Guarantee Fits a patient with an arm circumference of 26" to 11.8" in.