Review on 🔌 Yescom 600V 175 Amps Battery Quick Disconnect Kit - Ideal for Winches and Trailers - 2-4 Gauge Wire Connector by Tim Hodzic

Looks like good materials, works as expected. Pin contacts are designed for large copper cables; I think up to 2nd or 4th caliber. (not mentioned in the product description). My 4 gauge winch lines left plenty of room in the pins before being crimped. You will definitely want to use a crimping tool rated for 2-4 gauge pins; I didn't have the right tool and made a real mess as I couldn't crush the pins properly. They're very thick and stiff, and if you accidentally flatten them instead of curling them, they won't go back into the case.