These purple tip needles by Janome effectively prevent skipped stitches when sewing and embroidering on heavy fabrics, including knits, quilting multiple layers, and also for sewing across the hem
Authentic Janome needles are made by Organ - for the reliability you expect in needles
Look for the size and "Organ" stamped on the needles to verify the quality
Janome part number: 859438007, 202122001
A ballpoint tip that prevents fabric thread breakage and a special "cobra" head that reduces the fluctuation of fabric that causes skipped stitches