When a mechanical problem has you feeling lost in space, the Alien II is the extraterrestrial that will ensure you don't have to phone home. Its molded-plastic body provides an excellent gripping surface and splits in two with a press of a button. Tools include: 2, 2.5, 3, 4, 5, 6, 8 and 10mm Allen wrenches; 8, 9, 10mm box wrenches; Phillips and regular screwdrivers; a universal chain tool; 14- and 15-gauge spoke wrenches; a stainless-steel knife; a T25 Torx wrench for disc brakes; and a compartment for 2 chain pins. There's even a handy bottle opener for after the ride.