Hemming web, white strip 5 m x 25 mm width . The iron-on hem is made simply by using a steam iron! The hemming web is perfect to use on printed fabrics if you want to avoid changing your fabrics with stitching or inserts. These hem strips are generally used to make hems on the cuffs or at the bottom of shirts, but they can also be used for button flaps. On these, the heat-activated strip has two advantages: it fixes the fold and it adds strength. As it is made with an iron, very neat right angles can be made. BOHIN offers strips measuring 5 m x 25 mm and 5 m 20 x 38 mm.