Materials
3 (3, 5, 5, 7, 7) x 50 g balls in colour 1 and,
1 (1, 2, 2, 2, 2) x 50 g balls in colour 2 and,
1 x 50 g ball in colour 3.
Buttons for V neck cardigan: 5
Buttons for ropund neck cardigan: 7