Sensa Each SENSA writing instrument is a combination of hi-tech ergonomic engineering, advanced science and trend setting fashion. Take some time now to see just what makes a Design feel so comfortable, perform so well, and look so sensational. … SENSA has come to define the standard of ergonomic comfort in writing instruments today and is known as the "World’s Most Comfortable Pen." This kind of recognition is the mark of a fine design, unique style and a rare balance between form and function. Pictured are just a few of the Sensa writing instruments. Please call us for more information.