Multi-sections roller type tension deviceOptional to configure 1,2 or 3 sections of tension controlCan be set with a number of different tension at the same time, and used alternatelyEasy to sew with a number of different tightness productsWidth of tension device can be adjusted, maximum of elastic width is 2..
Multi-sections roller type tension deviceOptional to configure 1,2 or 3 sections of tensio...