You will also need:
1 pair of 3.25mm knitting needles
1 pair of 4mm knitting needles
3 (1.5cm) buttons for round neck cardigan
4 (1.5cm) buttons for v neck cardigan
Tension:
22 sts and 30 rows to 10cm, 4in, over stocking stitch, 19 sts and 40 rows to 10cm, 4in, over rib pattern, 19 sts and 35 rows to 10cm, 4in, over ridge pattern, all on 4mm needles or the size required to give the correct tension.