This product is ideal to be used in car/air/water ambulances. It gives a precise measurement even with strong vibrations . This is ideal for ambulances or medical clinics because of the compact size and structure. It can be read easily because of the wide dimensions of the large dark blue face with white numbers. It has a good extension and guarantees that pressure measurement will be achieved even if the sphygmomanometer is distant because of the adult cuff made of Oxford nylon with Velcro® calibrated closure, a mono latex rubber bulb with valve and spiral hose. Special design, reliability and superior quality come with a high price.