Locking vs. Non-locking
Locking carabiners have gates that can be locked to prevent accidental openings. Use them for belay/rappel devices and critical protection placements. Choose between:
Non-locking carabiners are lighter, quicker to clip or unclip but can accidentally open. Ideal for racking gear or for quickdraws.
Shape
Gate Types
Read full article: How to Choose Carabiners