Slim boxes are extremely thin and you can squeeze several inside a normal vest pocket. Slim Nymphmaniac Silicon is a special version for Nymphmaniacs. The box has silicon inserts that do not wear over time. Cool Nymphmaniac green color and print on the bottom of the box.

Two sizes available; Medium and Large.

Medium: 128x100x12mm, 115 flies, 83g

Large: 187x98x12mm, 188 flies, 129g

Made for nymphs and small flies.