These blindstitch curve sewing needles are made of reliable steel material, which ensures high strength and longer service life. These embroidery machine needles in high sharpness feature smoothing design, which can easily penetrate the fabric without damaging it. The size is standard and sufficient to meet your different sewing needs. It is a good helper for your work. Easy to store and carry, ideal for repair and replacement. They can also be used to make bags, repair baskets, sofas and furniture. These industrial blindstitch curve sewing needles are suitable for household or industrial blind stitching mahcine and edge sewing machine. These hand sewing needles are great for mattresses, leather, upholstery, carpets, coats, tents, canvas etc.