Mustad 39951NP-BN Ultra Point Demon Circle Hooks - Size 1

This a relatively a presentation used in tip up ice fishing (and
others). You let the fish swim away with the bait in its mouth. You then
place steady pressure on the line, the hook slides back out of the mouth
but gets caught in the corner of the mouth, this prevents gut(not 100
percent) hooking a fish when the fish takes the bait far in the mouth.
This also gives you the opportunity to release fish after hooking in the
corner of the mouth. The hook size is the most critical in conjunction
with the bait size and the species. I'm still experimenting.. Hope this
helps.

I love this hook's,I use them for Catfish on Ky. Lake, Trout on White river Al. Redfish and Flounder in the Gulf.