Loaded 2-Heavy M-L Nymph's-Slim Fly Boxes.We like to make things easy and efficient for you when buying our flies and having fun catching untold trout. So we have carefully selected and made up these loaded new Generation silicone fly boxes in various sizes that come free with our fly box security lanyard. Each box is fully Loaded and ready to go, with various needed selections of our meat and potato larger M Heavier nymph's flies of choice. This box is a must have with its variations,