Hightex 7373 Extra heavy duty walking foot industrial sewing machine for heavy duty sewing for 2-4 ply Nylon, Polyester, or Polypropylene webbing with each of 4 mm. Your advantages: 1. Low cost equipment with automatic sewing operation; 2. Extra heavy duty sewing equipment with robust construction; 3. Super low maintenance cost; 4. Very large bobbin capacity; 5. Walking foot (top and bottom feed); 6. Over 20 years of experience with webbing sling sewing industry has been taken into consideration. 7. Ready to operate. http://www.cowboysew.com/product2.htm