The material used for the new Bio-Star by Ritter-Pen is obtained from cellulose. This injection granule made out of renewable domestic woods is not only degradable, but its production also doesn’t harm any oil reserves. The special attributes of these bio-pens that are made in Germany are their excellent printability and the stability of shape of the writing instrument under the infl uence of heat. Furthermore, each Bio-Star pen is labelled with a discrete imprint, informing the recipient about what exactly he is holding in his hand. Moreover, the design of the Bio- Star is very attractive, and it leaves no doubt whatsoever about its topicality. Add to this a selection of 17 colours that enable the CI of the advertising company to be conveyed.