At Mavrk we're crazy about Fly Tying. We believe that simpler is better when it comes to fly fishing, especially when organizing your fly tying materials. So we developed the Pro Box 24. This 24 compartment hook and bead organizers was develped specifically for serious fly tiers to help them organize their hooks and beads, but it's great to store your flies as well. Pro Box has 24 compartments, each measuring 1.2" cube. The compartments have rounded bottom corners to easily pick up even the smallest of hooks and beads- And it just feels great in your hands. The Pro Box 24 does NOT use removable dividers that will innevitably mix up all your hooks and beads. The Pro Box 24 is injection molded polycarbonate for it's strength and also it's clarity. We promise this will be one of your best fly tying purchases, ever!