What Is a Fishing Swivel? Types, Uses, and How to Choose

A fishing swivel is a small metal connector with two rings joined by a rotating barrel or bearing. It links two pieces of line, or line and a lure, and spins freely so that a rotating lure or a twisting fish does not twist your main line. Swivels also create a stop point for sliding weights and make it easy to add a leader.

This guide explains how swivels work, the main types, when to use one and when to skip it, and how to choose the right size. For the knots to tie them on, see our fishing knots guide; for related tackle, see the terminal tackle section.

What a Swivel Does

Prevents line twist. Spinning lures like inline spinners, spoons, and some bait rigs rotate as they move. A swivel lets that spin happen below it, so your main line stays straight.
Connects a leader. Tie your main line to one ring and a leader of fluorocarbon, mono, or wire to the other.
Stops a sliding weight. On a Carolina rig or a catfish rig, the swivel keeps an egg sinker from sliding down to the hook.
Speeds up lure changes. A snap swivel lets you swap lures without retying.

Types of Swivels

Barrel swivel

The most common type: two rings joined by a small barrel. Good for leaders, Carolina rigs, and general bait fishing. Inexpensive and widely available.

Crane swivel

Similar to a barrel swivel but made with heavier, more uniform construction. Often used where more strength is needed, such as saltwater rigs.

Ball bearing swivel

Uses ball bearings instead of a simple barrel, so it rotates more freely under load. Best for trolling and for lures that spin hard, where an ordinary swivel may not turn enough to stop twist.

Snap swivel

A swivel with a safety-pin style snap on one end. Lets you clip lures on and off quickly. Common with spinners and spoons. Choose a strong snap style, such as a coastlock or duolock, for bigger fish.

Three-way swivel

Three rings on one body. Tie your main line to one ring, a weight to the second, and a leader with bait to the third. Used for bottom rigs in rivers and for catfish and walleye.

Bead chain swivel

A chain of small swivels that resists twist well. Often used ahead of trolled spoons and spinners.

When to Use a Swivel

With inline spinners and spoons, especially on light line. See our trout spoons guide.
When adding a leader to braid or mono.
On Carolina rigs, three-way rigs, and many catfish and surf rigs. See our types of fishing weights guide.
When trolling, where lures and long lines twist easily.

When to Skip a Swivel

Crankbaits, jerkbaits, and topwater lures. The extra weight at the nose can change the action. Many anglers tie direct or use a small snap (without a swivel) or a split ring.
Clear water and wary fish. Shiny hardware can draw attention. Use small black swivels or tie a direct line-to-leader knot.
Finesse soft plastic rigs where a direct tie is simpler.

How to Choose a Swivel

Size

Swivel sizes work like hook sizes: larger numbers are smaller swivels. Choose the smallest swivel that is strong enough for your line. Each package lists a rated strength.

Strength

Pick a swivel rated at or above your line’s strength so the swivel is not the weak link.

Finish

Black finishes are less visible than brass or chrome. Stainless or coated swivels resist corrosion in salt water.

How to Tie On a Swivel

Tie your main line to one ring with a Palomar, improved clinch, or uni knot.
Tie your leader to the other ring with the same knot.
Wet each knot before tightening and trim the tags.

Common Mistakes

Using a swivel that is too large for light line.
Putting a snap swivel on a crankbait and killing its action.
Using cheap snaps that open under load on big fish.
Forgetting a bead between a sliding sinker and the swivel, which can damage the knot.

See more in our Swivels & Snaps section.

FAQ

Do I need a swivel for fishing?

Not always. Use one with spinning lures, leaders, and bait rigs. Many lures work better tied directly.

What is a barrel swivel used for?

Joining a main line to a leader, stopping a sliding sinker, and reducing line twist.

Do swivels scare fish?

Bright swivels can draw strikes or spook fish in clear water. Small black swivels and longer leaders reduce that risk.

What size swivel should I use?

The smallest one rated for your line strength. For light trout and panfish line, use small sizes; for catfish and saltwater, larger, stronger ones.

About the author

James

James writes reviews and buying guides for Fishing Hacking, covering rods, reels, line, lures, and the gear anglers rely on. His work focuses on clear criteria, balanced pros and cons, and practical advice to help readers choose equipment that fits how and where they fish.

What Is a Fishing Swivel? Types, Uses, and When to Skip One