Hexagonal or dogbone wrenches, brand new, made of lightweight, durable aluminum. 10 socket sizes. Ideal for bicycle repair, general repair in tough-to-reach places, faucet stem repair/replacement. (I even used two to replace a pair of bathtub faucet handles that had corroded from age, rather than spending a lot of time and money finding the exact replacement handle or the entire stem.) Hard to find in St. Louis; that's what sent me on the quest to find them--I needed cheap, improvised replacement handles for the bathtub and they fit perfectly! Then I figured I'd order a bunch and start selling them. They've been selling like crazy!