Using the #4 Holland Adapter to bunk our #230 cots will result in a much more stable set-up than we used to get with the Army adapters. The #4 Holland Adapter works equally well with the #10 Holland Cots or our #230 Army Cot.  The adapter will accept legs of 1" outside diameter or smaller only.    Extra heavy tubular steel, 4 adapters per set.  Converts cots quickly and easily.