3 Piece Alligator Pliers Set, 7 1 4 in, 10 in, 12 in ORS NASCO Marking sticks mark on dark Marking sticks mark on dark surfaces and write on most surfaces Specially formulated to mark on wet and oily surfaces Extra bold tip marks dark surfaces with an opaque line Waterproof formula resists fading and adheres to virtually any surface Easy to use twist resistant shaft anchor Tip Ident® quickly identifies nut driver hex orientation and size by color coding the handle ends so you can easily engage the nut driver with the fastener hex and flat Pinch guard protects operator's fingers no slipping off the workpiece and low handforce required Thin head allows work in confined areas Serrated gripping surface and special hardened teeth will grip any shaped object—round