The Lugger features two well designed prongs which provide trouble free usage, recessed areas for magnets, an ergonomic and streamlined handle, and a stress relief gap to absorb stress but also provides a way to clip it on a bag strap. The lugger helps you carry one gallon milk jugs, two at a time. Its also handy for extra grocery bags, or even half gallon jugs. Its got recesses at the back to accommodate four 6 MM round by 1.5 MM thick n50 magnets to be glued in. I feel the ergonomic design feels good when handling two gallons at once and you can feel comfortable carrying it. You can clip it right in place and pick up the two gallons at once without any drag or catching. The gallons fall into place using their own weight to rest on each other. Also its designed to be handy when you need to put them down and reach for your keys or open a door. The Lugger will not fall off and you can pick it back up again for that more streamlined usage. You can clip it on a purse for mobility, and finally when your done with it, simply post it back on the fridge for storage. https://www.youtube.com/watch?v=tPgmUhL6Iog