Gear-free Durashock Design Is Much More Durable Than Traditional Aneroids With Gears Allowing You To Maintain Accurate Blood Pressure Readings With Lower Lifetime Cost * Provides Unsurpassed Reliability In A Traditional Handheld Design * Super Shock-resistant - Can Withstand Up To 60 Drop (twice The Aami Shock Resistant Standard) And Remain In Calibration * Jeweled Movement For Long Life * Laser-engraved Dial Face For Accuracy * Premium Inflation System For Comfort * Lifetime Calibration Warranty * Latex-free *