This utility awl sews lock stitches in heavy materials such as leather and canvas. It comes with one #8 straight needle, one #8 curved needle, and 14 yards of coarse, tan-colored, waxed polyester thread on a bobbin. The needles and bobbin store conveniently in the wooden handle. Coarse or fine thread refills are available in 30- and 180-yard skeins. A #4 fine straight needle is also available.