Cotton bias binding folded on both sides is very suitable for hemming both soft fornishings (e.g. tablecloths) and various types of garments (e.g. T-shirts, shirts).
Bias bindings are indicated in width, on which they are folded. It means that after stitching they have half-length. That means that bias binding indicated as 30 mm is after stitching 15 mm wide. Length per 25m.