KLASSE-3 German-engineered titanium machine needles size 80/12. The tapered point penetrates without damaging the fine fabrics used in quilting. The strengthened shaft helps to reduce needle deflection as it penetrates multiple layers of fabric. Titanium adds strength and durability. Best for: machine quilting, patchwork, and projects with thick layers and crossing seams. Use with cotton, polyester, rayon, or blended quilting thread.