Sizes

small - steel crochet hook No. 1 - bust size 33”
(10 - 12) length to underarm 12 1/2”
armhole depth 7 1/4”

Gauge - 4 patterns = 4 1/2 inches on 1 hook

medium - steel crochet hook No. 0 - bust size 37”
(14 - 16) length to underarm 12 1/2”
armhole depth 7 3/4”

Gauge - 4 patterns = 5 1/2 inches on 0 hook

large - steel crochet hook No. 00 - bust size 41”
(18 - 20) length to underarm 12 1/2”
armhole depth 8 1/4”

Gauge - 4 patterns = 6 inches on 00 hook