Hawk PC2025 Mini Aluminum Compass with Snap-Hook Carabiner Lightweight aluminum design fits easily and comfortable on many surfaces Compass Is 1 inch in diameter and the overall length is 2 5/8 inches Includes a snap link - easily attaches to belt loop, backpack, and more Use it as a key ring and never be lost again! Great for emergencies, children's toys, hiking, camping, keys, and more