This very large, rounded, lightweight aluminum carabiner is an ideal attachment device for a variety of at height jobs. The large gate is easy to grip and twist. Even though it's a large device, it feels comfortable in your hand. A raised flange on the outside of the spine provides a good grip. The self-closing and self-locking twist-lock gate has an opening of 2 inches. The carabiner itself is large, measuring 9.3 inches in length by 5.6 inches wide. Aluminum construction keeps the weight down compared with oversized steel carabiners. Skylotec hardware is manufactured to the highest possible standards and is tested to provide both safety and comfort.