Bottle Opener & Pocket Tool.Surly's Jethro Tule pocket tool is crafted from stainless-steel, then polished to a high luster. It combines an offset box wrench on one end with a leverage-enhanced bottle opener on the other.The double-sided 15mm box wrench works with most bolt-off hubs on the market. It fits quite nicely inside recessed dropouts, including those found on our 1x1, Karate Monkey, and Steamroller frames. Quit carting around the Vice-grips; our smooth, spoon-shaped handle provides ergonomic pleasure for your palm under the most rigorous wheel-removing operations, at a fraction of the weight and bulk. And, it snaps open the fizzy reliably before, during, and after the ride. The Jethro Tule hangs nicely on a key chain and is light enough to carry comfortably anywhere. Being 'Thick as a Brick', it is built to last and to resist bouncing out of your pocket during a rough single-track ride, or cross-town jaunt.