Description Don't know what to get him? You can't go wrong with what is quite possibly the best invention ever, the bottle opener key chain. Engrave it with initials.Don't know what to get him? You can't go wrong with what is quite possibly the best invention ever, the bottle opener key chain. Engrave it with initials. Specifications THE 2 TOOLS ARE FILE (1-5/8" LONG) - KNIFE (1-5/8" LONG) - BOTTLE OPENER IS ON THE END OF THE ENGRAVING AREA - WITH BOTTLE OPENER, TOOL IS 3" LONG (NOT INCLUDING THE KEY CHAIN) - TOOLS ARE ALL STAINLESS STEEL - KEY RING IS 1" DIAMETER - ENTIRE TOOL IS 3/8" THICK IN CENTER & 3/16" THICK AT EDGES (SLIGHT CURVE)