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Print-in-Place Spring-Gate Carabiner — keychain clip (PETG)

A one-piece print-in-place keychain carabiner. No pin, no separate gate, no spring, no assembly — the body itself is the spring. Push the thin flank inward with your thumb, the gate opens, hook it on, release, it snaps shut. Prints flat with no supports. PETG recommended. NOTE: a light keychain clip for small items only — NOT a safety / climbing / load-bearing carabiner.