Stainless Steel Made of stainless steel , the tape binder has good corrosion resistance and high hardness. Features Used to insert the bias tape or binding. Fold the tape in half around the fabric and the guide structure keeps the tape straight. Wide Applications Can be widely used on most industrial sewing machines, flat seamers. It folds the fabric to create a clean finish on top and a raw edge on bottom. Works well with almost all types of thin clothing. Necessary sewing machine parts for the sewing work.