Yarn Requirements:
2 - 50gm balls for 0 - 3 months - (41cm, (16in) chest)
2 - 50gm balls for 3 - 6 months - (46cm, (18in) chest)
3 - 50gm balls for 6 -12 months - (51cm, (20in) chest)

Notions required:
4 buttons
Sewing needle with large eye and blunt end