Mark the position to be cut with chalk. Use scissors to cut off the excess along the mark. Turn the whole pair of trousers inside and outside, and then fold up the cut area. Dip the adhesive tape in water to avoid shrinkage. Take out the trouser opening tape, the white one is the adhesive strip, and stick it to the seam between the folded trouser leg and the pants. Use an iron to iron the pasted area. Specification Color: black Width: 25mm Length: 5 M Weight: 50g. Package include : 1* Roll Trousers edge modified strips (5M) Wide range of applications, suitable for trouser legs and cuffs, to shorten clothing to a suitable position, suitable shorten of various fabrics, etc. These double sided hemming tapes are useful for sewing workers, craftsmen, costume designers, fabric DIY lovers as well as daily home use for hemming, shorting, mending or interfacing; You can not only apply them for curtains, table cloth, dresses, jeans, pants, trousers, t-shirts, sheets and more, but also use them to DIY purses, card bags, fabric toys and more How To Use: 1. Mark with a ruler and a chalk line, and reserve 2-3cm to fold it up. Use scissors to cut off the excess part. When cutting, be straight. Too crooked and too oblique will affect the appearance. 2. Fold up 2-3cm, and iron the shape with an iron. Get iron-on hemming tape wet to prevent it from shrinking after ironing. 3. Put the adhesive strip face down and place it on the bonding area of the trouser leg. 4. They can be directly ironed with an iron to bond the adhesive strips, usually within 10-15 seconds. Specification: Color: Black Brown White Blue Gray Width: 25mm Length: 5 M Weight: 50g. Package include : 1* Roll Trousers edge modified strips (5M) Note: 1.Due to manual measurement, please allow a difference of 1-5g/1-2cm. 2.Due to different displays and different lighting, the picture may not reflect the actual color of the item. Thank you for your understanding.