Wood Grain Hard Rubber - Senior Model - These are some of my favorite Hard Rubber pens. The color is very pleasing with nice definition between the black and red. These come in a stub model that is shorter than the standard varieties. Like other hard rubber pens these are prone to oxidation and care must be taken. Lever filler pins are more of a problem with these than on the Plastic pens and any repair is limited in durability. The imprints on these are normally weaker than on other models and they tend to push up and wear completely off. Great care must be taken when refinishing these or the imprints will be completely lost. The sections can be either wood grain or black. The later pens normally have black sections.