Specifications:

18AWG wire with a diameter of approximately 0.0403 inches or 1.02462 millimeters.
Designed specifically for use in harsh marine environments.
Exceeds several industry standards, including UL 1426, ABYC, and US Coast Guard Charter boat (CFR Title 46) standards.
Constructed with premium vinyl insulation that is rated at 600 volts, 105 deg C dry and 75 deg C wet.
Insulation remains flexible even in extreme cold temperatures of -40 deg F/C.
Resistant to salt water, battery acid, oil, gasoline, heat, abrasion, and ultra-violet radiation.
Highest quality ultra-flexible (Type 3) tinned copper stranding provides maximum protection against corrosion and electrolysis while resisting fatigue due to vibration and flexing.
Ideal for use in boats and other marine vessels.
Provides maximum protection against corrosion and electrolysis.
Long-lasting and durable, even under harsh marine conditions.