Multi-Conductor tinned is ideal for use in the high corrosive environment of marine applications. Special electro-tinned, copper strands also increase protection against corrosion for recreational vehicles, automotive, trucks and trailers. Tinned copper stranding is extremely flexible for easy routing through marine applications and easier to solder than bare copper. Flame retardant, PVC insulation is highly resistant to water, oil, grease, gasoline, and other damaging solvents. This boat cable is 6/3 gauge with stranding of 266/30.