Nite Ize 4-in Black Locking D-shaped Wire Carabiner

Nite Ize believes no product is too small or basic to be improved. Exhibit A: the classic utility carabiner. Nite Ize designed an innovative slide-to-lock feature that securely locks the gate with a simple push and slide movement, and unlocks when you want it to just as easily. Then, instead of a bulky tubular construction, they've crafted a cross sectioned, rectangular stainless steel body that's durable, low profile, and slim; it feeds more easily through smaller openings and rests flat in pockets.