You can't call for roadside assistance on the water. That's why it's even more important to have a set of reliable jumper cables in your boat. The 12-gauge wire in these cables is tinned for use in saltwater environments and is heavily insulated. The extra-long 20-ft. length will easily reach from boat to boat, or can be run from your trolling motor battery to your starting battery. Also features rust-free clamps with long vinyl grips. 150 amps. Convenient snap storage case included.