The Cose Carabiner, 30mm in size and black, is a small, quick-release metal clip used to attach keychains, cords, and small accessories to bags, backpacks, and rings, opening with a simple flick of the thumb. Unlike the larger carabiner clasp used on straps, this more compact model is suitable for smaller-scale decorative and functional applications, such as keychains and small bags. The black finish gives it a discreet and versatile look. It's a practical accessory for those who make keychains and small leather goods.