18 sts x 24 rows = 10 x 10 cm [4 x 4 inches] in texture pattern on a 4.5 mm [US7] needle
Circular needles:
4.5 mm [US7] / 40, 60, 80 and/or 100 cm [16, 24, 32 and/or 40 inches],
4 mm [US6] / 60, 80 and/or 100 cm [24, 32 and/or 40 inches] and
3.5 mm [US4] / 60 or 80 cm [24 or 32 inches];
Double-pointed needles: 4 mm [US6]