Independent arborist gear picks · Typical prices shown, checked at the retailer

Representative photo for ISC Captive Eye Supersafe Carabiner Auto-Locking Carabiners

Representative photo. Check the retailer listing for the exact model, color and size.
Photo: Carabiners and Pulley by psd, CC BY 2.0

ISC

ISC Captive Eye Supersafe Carabiner

An auto-locking carabiner with a captive eye that holds terminations in position.

$32 Typical price. Retail prices change, so check today's price before you buy.
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  • Captive eye holds terminations in place
  • Prevents rotation and cross-loading
  • Supersafe auto-locking gate
  • Popular for lanyards and termination points
  • Made by ISC

ClimbingPro grade

The ISC captive eye Supersafe carabiner is an auto-locking connector with a captive eye at one end that keeps a rope eye, sling or device in position. The Supersafe gate locks automatically, and the captive eye stops the carabiner from rotating into a cross-loaded position.

What the captive eye does

A normal carabiner can turn under load so the rope eye slides toward the gate or the minor axis. A captive eye traps the termination in the correct position, so the carabiner stays oriented along its spine. That makes it a good choice at the end of a lanyard, on a rope termination, or on a device where you want a clean, consistent clip.

The Supersafe gate locks on its own when you let it close, which removes one more thing to think about aloft. Other auto-lockers are in auto-locking carabiners.

Captive eye carabiners are also popular on micro pulleys and hitch climber setups, where you want the pulley or termination to stay in the same position on the carabiner every time you clip it. That consistency helps your system tend smoothly and makes inspection easier, since you always know where each part should sit.

Checks before every climb

Confirm the gate closes and locks fully on its own and that the captive eye holds the termination as intended. Keep sap and grit out of the gate and sleeve. Retire the carabiner if it is cracked, deeply grooved, bent or has a sticky gate.

Carabiners in a climbing system are life-support gear. Life-support gear must meet ANSI Z133 and the manufacturer's instructions, be inspected before every use, and be used only by trained climbers.