Heavy duty leather sewing machine, United Shoe Machine better known as a Pearson sewing machine. The machine of preference of anyone sewing thick leather such as harness makers. Not motorized but that does not matter with this machine. Hand crank will easily sew leather up to 5/8 inch thick using threads from 69 to 630 sizes. It has been my workhorse machine and am only selling it as I found a slightly newer motorized machine of the same make. I used a Pearson for years in my harness making shop and went back to one when I went back into the business. Comes with a bobbin winder