Size 3 - Top length: 7 cm (2.7 in), Circumference: 30 cm (11.8 in)

Size 4 - Top length: 8 cm (3.1 in), Circumference: 34 cm (13.3 in)

Size 5 - Top length: 9.2 cm (3.6 in), Circumference: 39 cm (15.3 in)

Size 6 - Top length: 10.5 cm (4.1 in), Circumference: 43 cm (17.1 in)