Knock cabiner new version self defence keychain

thingiverse

Self-defense innovation takes shape with a carabiner keychain design specifically tailored for right-hand use. This fresh creation draws from remixed inspiration, showcasing an array of versions, each built upon previous iterations. The most recent iteration, labeled as "Improved," boasts enhanced protection for knuckles, a testament to ongoing refinement. Building on this progress, the next version will incorporate spikes, introducing a new dimension to self-defense. As a point of reference, the design was inspired by two notable projects on Thingiverse: 38540 and 1819242. This specific creation caters to smaller to medium-sized hands, with knuckle dimensions approximately measuring 10cm in length and featuring 20-25mm holes. For individuals with larger hand sizes, scaling the design using two identical pieces is feasible; however, it's crucial to ensure that the hole dimension and hand width don't increase proportionally. This consideration will prevent discomfort or reduced effectiveness during use. Please note: this self-defense tool is designed for personal protection or as a last resort in response to aggression, not intended for malicious intent.