For a quick treadle belt (because I couldn't wait to get one online) I bought aquarium tubing from the pet store - 6 feet for about $3.00. I cut to length, put electrical tape to hold the ends together (because I needed an extra hand LOL) then stapled the ends. Works like a charm. HELPFUL HINT: use clothespins to stop gravity pulling the belt back down the treadle belt holes in the top of the cabinet when you're doing it alone.