This Hauser rollerball pen is a vintage piece from Germany with a wooden body and gold trim. The pen uses a 7o7 SF cartridge, although the cartridge will need to be replaced as it is currently empty. It is my understanding that the German made Schmidt 888 and 5888 roller pen refills are also compatible. 

The pen comes with an Eddie Bauer leather covered case lined in green velvet for easy storage and transportation. This pen is a great addition to any collection or can be used for everyday writing needs.

Case measurements: 9 5/8” x 2 1/16” x 7/8” 
Pen is 5 5/8” 

All my measurements are approximate. I am not well versed on vintage pens, parts, or styles so if I have listing errors; please feel free to contact me and I will correct them. I am still unsure of the differences between a roller ball and ball point pen other than the ink. Just learning. I urge you to look at all my pictures and message me with any questions. I like offers as well. Thanks for looking.