2 Core Copper Parallel Drop Wire with Messengerdrop wire/subscriber wire/residential wire/rural wire/service wire /lead in wireStructures of Copper Parallel Drop Wire With Messenger:1. Conductors:18 , 181/2 ,20,22,or 24 AWG solid annealed copper.2. Insulation:Black, flame-,weather- and abrasion- resistant PVC compound.3. Messenger wire: 7 stranded steel wires.