Reliable Security: Spring-loaded locking mechanism ensures pins stay firmly in place, preventing accidental loss of valuable jewelry or badges. Premium Metallic Finish: Features an attractive silver-plated brass construction that resists tarnishing while complementing your jewelry designs. Tool-Free Operation: Simple push-and-lock design allows for quick installation and removal without requiring any additional tools. Versatile Applications: Perfect for securing brooches, name tags, lanyards, craft projects, and collectible displays with standard 1mm pin shafts. Convenient Multi-Pack: Includes 20 durable pin backs to accommodate multiple projects or provide handy replacements when needed.