Measures 3 1/4" x 2 1/8" overall. 4 times heat treated black stainless construction. Eighteen functions including bottle opener, four screwdrivers (Phillips, flat and eye glass screwdrivers), can opener, nail puller, peeler, (6) standard US hex wrenches (4, 8, 12, 10, 6 and 2), cell phone stand, box opener, letter opener and ruler (in and cm). TSA approved.