The GSC710 is an outer sleeve connector made of nickel-plated copper alloy for a shielded cable grounding system made of 2 cylindrical sleeves, for solderless crimp connection. Length 7/16 Inch/11.2mm, inner diameter .710 Inches/18.03mm, outer diameter .790 Inches/20.07mm. The sleeve is color-coded according to their size. The color code is blue.