Made of durable stainless steel, the Niter Size Doohickey features a half-dozen tools that do everything from tighten bolts and screws to open a bottle of refreshment, all in a simple key tool that fits in the palm of your hand. On one end of the Doohickey is a sturdy carabineer clip, allowing you to attach keys to it, or attach the Doohickey itself to any loop or ring. Opposite the clip is an etched ruler for on-the-spot measurements and the carabineer opening is strategically shaped to function as a wrench. On the other end, the Doohickey features a bottle opener, a flat head screwdriver and a box cutter. With a streamlined, clever design that makes it easy to carry, attach, remove and reattach, it"s always as at-hand as it is handy.