16” (0-6 months) - 2 balls of 50 grams, dk weight yarn
18” (6-12 months) - 3 balls
20” (1-2 years) - 3 balls
22” (2-3 years) - 4 balls

Additional gauge: 22 stitches and 30 rows over 10 cm (4”) in stockinette on 4 mm needles.

Roll neck, round/crew neck, or v neck versions in wide rib.