Using a fingernail to chop vegetables. Don't use these in a salad. The nail bends over 90 degrees and snaps back. The video is from http://www.FlexiNail.com
FlexiNail is actually used as a fingernail conditioner for dry, brittle, cracking or peeling nails. Strong nails that can actually bend over in half and snap back and be able to cut through a hard raw carrot.