ISC Iron Wizard Supersafe Carabiner

The ISC Iron Wizard Supersafe carabiner is a durable auto-locking connector for the high-wear points on a climbing system. It pairs a hard-wearing body with ISC's Supersafe gate that needs deliberate action to open.

Where durability matters

Some connectors on a climbing system see constant rope movement or rub against steel hardware, and aluminum wears through faster there. A tougher carabiner like the Iron Wizard is a good choice for a rope wrench tether, a connection to a steel ring, or an anchor that sees daily use.

A tougher connector is also worth having where carabiners rub against each other, such as at a ring on a bridge or a steel anchor. Aluminum wears quickly against steel, and a worn spot can become a sharp edge that damages rope or slings.

Check the material and strength markings on the spine for the version you buy. See our other auto-locking carabiners for lighter options.

Checks and care

Open and release the gate to confirm it closes and locks every time. Look for wear grooves, cracks and corrosion, and keep it clean and dry.

Treat it as life-support gear: follow the manufacturer's instructions, check it before every climb, and retire it after a hard fall, a drop onto a hard surface, or any damage you can't explain. Use it within an ANSI Z133 program and only after proper training.

Steel carabiners are heavier than aluminum, so most climbers use them only where durability matters and keep lighter connectors elsewhere on the saddle.