Value Sport Fishing Treble Hooks 3551 High carbon steel triple hooks, the size unit is "inch" 3/0# 1.5*0.53 2/0# 1.38*0.51 1/0# 1.3*0.47 1# 1.14*0.41, 2# 1.1*0.39, 4# 0.91*0.31 6# 0.79*0.28, 8# 0.67*0.24,10# 0.55*0.2 12# 0.49*0.2, 14# 0.47*0.18, 16# 0.39*0.16, 18# 0.35*0.14