The Gingher 4 1/2 inch knife edge Thread Snips is ideal for cutting and snipping thick layers of fabric and heavier yarn. These snips are designed to work with the index finger underneath the snips while the thumb is on top. The middle finger goes through the loop to stabilize the nippers while the thumb and index finger push the blades together for cutting. The double-plated chrome finish over nickel is both durable and handsome. Use a G-S sharpening stone for blade maintenance.