SCHMETZ Chrome Professional Grade is the perfect sewing partner. Chrome resists heat and wear. Chrome will stay cool longer with less stitch distortion and aids the thread to pass through the needle eye with less friction and less heat build-up. Chrome also allows the needle to pass through the fabric with less resistance. Used for micro fibers, polyester, silk, foils, artificial leather, and coated materials. Very thin acute point creates beautiful topstiching and perfectly stright stiches for quilt piecing when precision is paramount.