These hook holders are tapered so that they can hold a wide variety of single, double or treble-hooks securely to your fly. Made of semi-soft silicone.
#S (Length 13.0 mm, ∅ 2.5 mm)
#M (Length 15.5 mm, ∅ 2.75 mm)
#L (Length 18.0 mm, ∅ 3.0 mm)
Fig 2 & 3 show examples of combination