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.