The pack of 8 SINGER regular and ballpoint sewing machine needles is a great starter kit offering the beginner sewing enthusiast two standard types of needles in varied sizes. Ballpoint needles are best used on knit fabrics, and regular point needles work best on woven fabrics. Machine needles are color-coded to their sizes, which include: orange size 80/11 to use on lightweight fabrics, blue size 90/14 to use on medium weight fabrics, and purple size 100/16 to use on heavyweight fabrics. SINGER sewing machine needles can be used on SINGER, Brother, Kenmore, and other quality sewing machines.