Cutex Brand 72" Leather Belt For All Treadle Sewing Machines 5/16" Wide 72" Leather Belt For All Treadle Sewing Machines 5/16" Wide 72" leather treadle belt with metal fastener. Fits all treadle sewing machines including Singer, New Home, White and many others. Most machines require 68" or shorter belts, simple custom cut to the length you need. This is a high quality belt and is made of leather. 5/16" (8mm) Wide.