TBX boxes are fully designed by SPRO for lure fishing. The boxes are all made with metric external dimensions in a modular sizing pattern, allowing them to be stacked uniformly and placed in a tackle bag. TBX boxes are designed with a completely unique flat hinge system, meaning that every side of the box is flat. This is a great feature because it makes it much easier to place the boxes in tackle bags. Each box has a single wide clip on the front that can be used with one hand. Another unique aspect of TBX boxes is the sections for small items. Where the edges are wasted space in normal tackle boxes, our designers have taken the opportunity to utilize the space by adding shallow compartments for all kinds of small items. There is even a separately available TBX Tray that is compatible with most boxes.