The 7-Loop Crab Snare is a vinyl-coated steel wire bait cage that has a bottom-opening
door and seven monofilament nylon snares. Can be cast with a fishing rod.
I bought 4 of these and they were so cheap, why not try it. The plastic snares are too thick and will not pull tight when pulled. Your crab must be the size of a chicken to pull it tight. Crabs don't weigh that much unless you are in Alaska. Caught nothing and let them soak for a short period and long period of time. Do not try this for blue crab. Maybe rabbits.
This is a snare that does what others don't -- catch the keepers and drop the little ones. Undersized crabs fall from the heavy loops, but legal ones stay put.