Sort A Tool sorts wrenches - organizing them by size and storing them on edge (instead of flat), which lets this tray hold twice as many wrenches in the same space as an ordinary tool storage device. Tray holds both metric and SAE wrenches, and can be configured to hold: all metric wrenches, from 6 - 19mm; all SAE wrenches, 1/4 to 3/4 in. or; a combination of SAE and metric (up to 28 wrenches). Made from molded polypropylene for easy cleaning. Wrenches not included.