The Leatherman Tread Wearable Multi-Tool ($150+) offers a complete toolset that you can wear on your wrist. Each link of the Tread features two tools. These include allen wrenches, screwdrivers, box wrenches, a glass breaker, oxygen tank wrench, cutting hook, and a bottle opener built into the bracelets clasp. The links you choose are completely customizable. Made from 17-4 stainless steel, the Tread is highly corrosion-resistant and built to last. Later this year Leatherman will be selling a watch that can be added to theTread turning it into a beautifully functional timepiece.