The sizes of poncho and hat are given for babies / children to fit chest:

41-46, 46-51, 51-56, 56-61, 61-66 cm
16-18, 18-20, 20-22, 22-24, 24-26 inches

Poncho total width, laid flat:

43, 48, 55, 62, 69 cm
17, 19, 21 3/4, 24 1/2, 27 1/4 inches

Poncho full length, from shoulder:

28, 32, 38, 42, 48 cm
11, 12 1/2, 15, 16 1/2, 19 inches

Hat width, around head:
36, 38, 40, 42, 45 cm
14, 15, 15 3/4, 16 1/2, 17 3/4 inches

Blanket, finished size:
66 wide and 77 cm long
26 wide and 30 1/4 inches long

Materials (King Cole Comfort Aran, all SOFT PINK 334):

Baby Bunting Poncho:

2, 3, 4, 5, 6 - 100g balls

Baby Bunting Hat:

1 - 100g ball for all sizes;

Baby Bunting Blankie:

3 - 100 g ball

Knitting needles:
1 pair 4 mm (UK 8 - USA 6) knitting needles;
1 pair 5 mm (UK 6 - USA 8) knitting needles;
Cable needle