Preformed Line Products GLS-2109 Strand Splice. Extra High Strength C-Coat. For use on: Extra High Strength, High Strength, Siemens Martin, Utilities Grade2. Strand size 1/2", Strand construction 7W / 19W, Strand actual diameter .495" / .500", Length 63", No. of subsets 3, Rod diameter .138", Color code Blue.