Insulation O.D. min 1.07"(27,2 mm) - max 1.70" (43,2 mm). This splice kit is a 35 kV-class inline splices for joining jacketed concentric neutral (JCN) and concentric neutral (CN) power cables. It is a cold shrink design sized to fit Type MV-90 or type MV-105 cables with an aluminum conductor size of 250 kcmil.