GINGHER-Knife Edge Bent Trimmers: 10 inches. Whether you need to cut leather, upholstery, drapery fabric, or rubber, these 10 inch heavy duty Knife Edge Bent Trimmers make cutting tough materials easy. Thick , strong blades have a hand tuned knife edge to make clean cuts all the way to the points. Trimmers are made of double-plated chrome over nickel. Imported.