Klasse Machine Needles go through 163 quality checks, earning the industry's highest quality rating for: stability at high speeds, seam appearance, clean stitch holes and precise and uniform stitchability. Each needle has a unique number stamp identifying its point style and size when separated from the package. Topstitch needles have an extra large eye that will accommodate thick topstitch thread, and the extra sharp point allows easy fabric penetration. Best for topstitching, Sashiko, and blanket stitching. Use with topstitch, and double all purpose threads. Topstitch Machine Needle Size 90/14 6pc