Pin Feed Continuous Computer Paper is perforated transversely at regular intervals with a line of small slits which form a tear edge that defines the top and bottom of each page. When unfolded into a flat continuous sheet, this slit perforation closes up to allow the printer to print across the perforated edge without stopping or jamming. The paper is also punched longitudinally along both side edges with 5/32-inch (4 mm) diameter engagement holes at a regular 1/2-inch spacing. These holes engage with sprocket wheels or toothed belts, which push or pull the paper through the printer. this paper is designed for all Tractor Feed Dot Matrix Printers