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Compare Best Carabiners & Fasteners head to head

Pick any two picks from this list and see specs, current price, pros, cons and reader ratings side by side.

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S-Biner SlideLock (Stainless)

#8 on this list

S-Biner SlideLock (Stainless)

Nite Ize

The best non-climbing clip made. Two gates, one on each end, both with a sliding lock, in stainless steel that shrugs off salt and rain. It is the fastener for everything that is not life-safety: zipper pulls, dry bags, dog leads, tarp corners, gear loops.

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S-Biner MicroLock

#9 on this list

S-Biner MicroLock

Nite Ize

The keychain-scale version of the same idea, sold in pairs. Small enough to live on a zipper pull or a key ring forever, with a locking gate so it does not shed a headlamp or a knife on the trail.

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Specs side by side

S-Biner SlideLock (Stainless) versus S-Biner MicroLock specifications
SpecS-Biner SlideLock (Stainless)S-Biner MicroLock
MakerNite IzeNite Ize
MaterialStainless SteelStainless Steel
GatesDual, Slide-to-Lock—
Load BearingNon-rated—
Corrosion ResistanceHigh—
Locking Mechanism—Center Lever
Weight—Minimal
Quantity—Sold in pairs

What our reviewers liked and didn't

S-Biner SlideLock (Stainless)

  • Dual independent gates offer quick, secure attachment points
  • SlideLock mechanism provides reliable security against accidental opening
  • Stainless steel construction delivers exceptional corrosion resistance
  • Highly versatile for countless non-load bearing applications
  • Excellent durability and longevity in harsh environments
  • Not rated for climbing or any life-safety applications
  • Plastic SlideLock mechanism could eventually wear out or break under extreme abuse
  • Can be slightly more expensive than basic, unsecure S-Biners

S-Biner MicroLock

  • Securely locks small items, preventing loss
  • Extremely lightweight and compact
  • Durable stainless steel construction
  • Intuitive double-gate design with positive lock
  • Versatile for keys, tools, headlamps, and zipper pulls
  • Not suitable for heavy loads or climbing
  • Locking mechanism can be fiddly with gloves
  • Plastic locking lever is the most vulnerable component

Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.