Jersey & Stretch needles have medium ball points. The eye & scarf differ.
Jersey 70/10, 80/12, 90/14; Stretch 75/11, 90/14.
Fabric use: use the Stretch needle when fabrics contain Lycra®, Spandex® or elastic. Use Jersey on knits & some stretch fabrics. Jersey & Stretch needles are sometimes interchangeable. Test needle, thread, and fabric combo for stitch quality.