We designed an innovative slide-to-lock feature that securely locks the gate with a simple push-and-slide movement and unlocks just as easily. Then, instead of a bulky tubular construction, we designed a cross sectioned, rectangular body that's durable, low profile, and slim; it feeds more easily through smaller openings and rests flat in pockets. Available in stainless steel or colorful aluminum, the SlideLock Carabiner is sold in a variety of sizes to carry a wide range of items.