The Baumanometer Desk Model features a large bore, Mylar clad glass cartridge tube, our Calibrated V-Lok Inflation System and an diecast aluminum alloy case. It is a precisely calibrated clinical sphygmomanometer, designed for clinicians who require a strong, lightweight, portable, instruments that offers scientific accuracy and years of trouble-free service. Like all Baumanometer instruments, it is backed by the manufacturer's guarantee. The case is made of lightweight aluminum alloy. The case is made of lightweight aluminum alloy. The instrument color is Neutral Gray textured baked enamel. The aluminum scale has large white epoxy numerals on a black anodized background.