Dark Blue 18 AWG Tinned Copper Wire – 500’Ancor Marine Grade wire products are the longest lasting and most rugged available, exceeding UL 1426, ABYC and US Coast Guard Charter boat (CFR Title 46) standards. They are constructed with premium vinyl insulation that is rated at 600V, 105C dry and 75C wet, stays flexible even in extreme cold (-40F/C) and resists 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.Wire Gauge: 18 AWGNominal O.D. (inches): 7/64Nominal O.D. (mm): 3WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications:Gauge: 18 AWGColor: Dark BlueLength (Feet): 500’Box Dimensions: 5″H x 7″W x 7″L WT: 5.15 lbsUPC: 091887101768