You will need: 1 pair 4 mm (UK 8 – USA 6) knitting needles and 1 pair 3.25 mm (UK 10 – USA 3) knitting needles. 4[4:5:5:5] buttons, 1.5cm, ½in for cardigan and waistcoat. Cardigan Sizes 0-6mths 6-12mths 12-24mths 2-3yrs 4-5yrs Bambino DK, Sage 7117 2 2 2 3 3 Waistcoat Sizes 0-6mths 6-12mths 12-24mths 2-3yrs 4-5yrs Soft Baby Easy Stripes , Georgi 5377 1 1 2 2 2