Paper Unlimited's 20 lb. Inkjet Prefold Paper with a 8.5" fold is the optimal solution for seismic well log printing. Designed primarily for black and white printing with spot color, our 9.5" X 150' flat pack of 8.5 inch fold paper is the premier line of seismic well log media in the country. Paper Unlimited product number F20BIJ912R812P includes 2 items per package.