Schmetz Microtex Sharp Needles have a very sharp point for perfectly straight stitches, topstitching or edgestitching. A very slim needle with a thin shaft that helps make very straight stitches. It was developed for the modern micro- fibers and polyesters and high thread count, high quality fabrics used today. The point is very sharp - thus the name - but because of this it is a bit more fragile and needs to be changed more regularly. This is a great needle for piecing high thread count fabrics like Batiks, silks, and microfibers. Chrome Size 70/10 5pc- The Chrome needle resists heat and wear, will stay cool longer with less stitch distortion.