Circle Hook
The point curves back toward the shank so it slides over everything except the jaw corner - the conservation standard for soaking bait, where you must NOT strike.
A circle hook looks almost closed: the point turns sharply inward toward the shank. That geometry does something clever - as a fish swallows and turns away, the hook slides harmlessly over the throat and gut until it reaches the jaw hinge, where it catches and rotates into the corner of the mouth. The result is fewer deep-hooked, fewer dead released fish. The catch: you must NOT set the hook. Striking pulls it out of the mouth entirely.
What it is
A hook with the point curled back toward the shank, designed to self-set in the corner of the jaw rather than wherever it happens to be when you strike.
When to use it
Bait fishing where the rod sits in a holder and fish take on their own: surf and pier soaking, catfish sets, live-lining, offshore bait. Required by law in some fisheries precisely for its release survival: the Atlantic States Marine Fisheries Commission mandated circle hooks when fishing with bait in recreational striped bass fisheries, and NOAA Fisheries notes that circle hooks are required when fishing with natural bait for reef fish in federal waters of the Gulf.
How to rig & set it
Hook bait so the point is fairly exposed; a non-offset ('inline') circle releases fish best. When the rod loads, do NOT jerk - just reel until tight and lift steadily; the fish's own motion sets it in the jaw hinge.
Sizing
Same numbering as J-hooks; circle sizes often run a touch large for the bait since the gape is partly closed. Match to bait bulk - too small a gape and the corner-set fails.
Circle hook sizes, by product
What size range real circle hooks come in, from the makers' product pages, checked on 26 October 2026; we have not tested them, there are no prices here, and the Amazon link searches for the exact product (we may earn a commission if you buy through it).
| Hook | Sizes | What the maker says it is for | Links |
|---|---|---|---|
| Eagle Claw Lazer Sharp L197 Light Wire Offset Circle Sea Hook | 1, 1/0 to 8/0 | Saltwater bait fishing with a light wire for natural presentations; offset, so check it is allowed where your fishery requires inline circles | Maker's page · See on Amazon |
| Eagle Claw Lazer Sharp Bait Saver Circle Hook | 3/0, 5/0 | Live bait: a monofilament loop holds the bait without damaging its gills | Maker's page · See on Amazon |
| Eagle Claw Cat Claw Octopus Circle Hook | 3/0 to 8/0 | Catfish: wide gap for bigger baits, forged shank | Maker's page · See on Amazon |
| Eagle Claw Cat Claw Circle Baitholder Hook | 3/0 to 7/0 | Catfish: two bait slits on the shank keep bait on in long casts and current; up-eye for snelling | Maker's page · See on Amazon |
Strengths & weaknesses
Dramatically fewer gut-hooks and higher release survival - the conservation win. Weakness: useless for hooksets you time yourself (jigging, lure fishing), and it demands retraining the strike reflex.
What costs you hookups
Striking it like a J-hook (the #1 error - it yanks the bait away), using heavily offset circles where inline is required for release, and undersizing so the narrowed gape can't reach the jaw corner.
Hooks to keep on hand
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