You will need

Cardigan
32in Chest - 3 Balls
34in Chest - 4 Balls
36in Chest - 4 Balls
38in Chest - 5 Balls
40in Chest - 5 Balls
42in Chest - 6 Balls

Slipover
32in Chest - 3 Balls
34in Chest - 4 Balls
36in Chest - 4 Balls
38in Chest - 4 Balls
40in Chest - 5 Balls
42in Chest - 5 Balls

3.25mm and 4mm Needles
3.25mm Circular Needle for Slipover
8 Buttons for Cardigan