Simple to use, simple to install. Pins are large enough for 6 GA wire but by double ending, 8,10 and 12 Ga is acceptable plus soldering, you will be golden in a great quick disconnect. We purchased a few for a local LV person but have a few extras to sell. No implied warranty, guarantee, refunds, returns. Will do our best to make it right. Please ask before purchasing. I can answer questions as needed so both you and I are satisfied on the product. We ship out in ten days or less due to my Monday-Friday travel schedule for regular job (Power Generation)