The two long sides of the tape are folded and ironed into the centre of the band, limiting the width of the binding to between 1.0 and 1.5 cm. The fold lines are used as guide lines when sewing the binding onto a garment or similar object. Bias bindings are often used to neaten or finish an edge on the inside of a garment.
See a bias binding tutorial (retrieved 6nd August 2016).
Digital source of illustration (retrieved 6nd August 2016).
GVE