The universal needle is great for all purpose use, the stretch needle for jersey or other elasticated fabrics, the Denim needle for thicker fabrics and Microtex needle for delicate fabrics.
SCHMETZ Machine Needles - Universal - 90/14 - 130/705H (Pack of 10)
SCHMETZ Machine Needles - Universal - 70/10 - 130/705H (Pack of 10)
SCHMETZ Machine Needles - Universal - 90/14 - 130/705H - HA x1 (Pack of 5)
SCHMETZ Machine Needles - Jersey - ASSTD SIZE - Stretch, Ballpoint (Pack of 5)
SCHMETZ Machine Needles - Universal - 80/12 - 130/705H (Pack of 10)
SCHMETZ Machine Needles - Stretch - ASSTD - Haberdashery, Stretch (Pack of 5)