Doohickey, Stainless Steel Tool, Features A Half Dozen Tools That Do Everything From Tighten Bolts & Screws To Open A Bottle Of Refreshment, Simple Key Tool That Fits In The Palm Of Your Hand, On One End Sturdy Carabineer Clip, Allowing You To Attach Keys To It, Or Attach To Itself To Any Loop Or Ring, Opposite The Clip Is An Etched Ruler For On The Spot Measurements & The Carabineer Opening Is Strategically Shaped To Function As A Wrench, On The Other End A Bottle Opener, AFlat Head Screwdriver & A Box Cutter, Streamlined, Clever Design That Makes It Easy To Carry, Attach, Remove, & Reattach, It's Always As At Hand As It Is Handy.