Description Model G 615 Cylinder: 3 ¾” Needles: 200 Gauge: -48 gg Year: 2004 Model L 615 Cylinder: 3 ¾” Needles: 168 Gauge: -36 gg Year: 2004 Model L 615 Cylinder: 3 ¾” Needles: 176 Gauge: -36 gg Year: 2004