Gauge 23 stitches and 30 rows = 4 inches in Stockinette Stitch Needle size US 3 - 3.25 mm US 4 - 3.5 mm You will need a circular needle size US 4 (3.5 mm) no more than 16" (40 cm) long. You will need a set of 4 double-pointed needles in sizes US 3 (3.25 mm) and US 4 (3.50 mm). You will need a length of 1" (2.5cm) elastic - enough to fit around the baby's waist. Yardage 284 - 426 yards (260 - 390 m) Sizes available 0-3(3-6, 6-9, 9-12) months. Finished measurements: Hip circumference: 21.75(22.25, 23, 23.5)" 55(56.5, 58.5, 60) cm Finished length: 10.5(11.5, 12.5, 14.25)" 27(29, 32, 36) cm Yarn used: Baby Cashsoft Merino Shade 123 Pickles - 2(2, 2, 3) balls