You will need

Bolero Cardigan
0-6 months (16in Chest) - 1 x 50gm Ball
6-12 months (18in Chest) - 1 x 50gm Ball
1-2 years (20in Chest) - 1 x 50gm Ball
2-3 years (22in Chest) - 1 x 50gm Ball
4-5 years (24in Chest) - 2 x 50gm Balls
6-7 years (26in Chest) - 2 x 50gm Balls

Hat
0-6 months (16in Chest) - 1 x 50gm Ball
6-12 months (18in Chest) - 1 x 50gm Ball
1-2 years (20in Chest) - 1 x 50gm Ball
2-3 years (22in Chest) - 1 x 50gm Ball
4-5 years (24in Chest) - 1 x 50gm Ball
6-7 years (26in Chest) - 1 x 50gm Ball

3.25mm and 4mm Needles
Stitch Holders
1 Button for Bolero Cardigan