These will be used for our students for training. Are they durable, easy to use & made to last for many years?

I have purchased these easy-to-use compact kits for travel to international destinations where I used them for BP screening in humanitarian free clinics. After our day clinic was complete, we left them there with the local staff, so can not speak to their longterm durability. For the price point, I find them a quality product - very appropriate for training in BP measurement. If you are interested in training for auscultation of heart and lung sounds, you would want a dual-headed stethoscope, which this kit does not have; although even in these instances, health care practitioners mostly use the diaphragm.