- Shape options – oval, “D”, or asymmetrical “D”
- Gate options – straight, bent, or wire gate
- Locking vs nonlocking gates
SIZE AND WEIGHT OPTIONS
Carabiners come in a variety of sizes, with larger ones typically being easier to handle, easier to clip (they have larger gate openings) and with the ability to hold more gear inside. They are commonly used with belaying and rappelling devices.
Generally speaking, the less weight you carry with you as you climb, the better. Lighter carabiners, however, are not always best. Super-light carabiners often use narrower build material, which lowers gate-open strengths and can decrease the lifespan. Narrower carabiner can also cause more rope wear, with the narrow ends biting into your weighted rope as it slides through.