We manufacture a number of high quality innovative products dedicated to the promotion of your company. Many of our products fall under the Pharma and Advamend code of promotional products as they can serve a patient educational purpose. Our line of calipers is one such example.Physicians and many other health care professionals use our calipers in the day to day interpretation of the electrocardiograms and cardiac rhythm analysis. These calipers are often and can used to patient educate and allow for a better understanding of the particular patients cardiac condition. We know that our products serves as a useful patient educational purpose same as for instance a plastic model.We remain today as we have since the foundation of our company dedicated to providing you our customer with only the highest quality of useful promotional tools.If you are looking for a quality product to represent your company and also satisfy Pharma and Advamed code guide lines look no further. At Mackin we pride ourselves with our innovative designs by offering a lifetime guarantee and the assurance of a quality product made in the USA.