Material: zinc alloy Size: 47mm/1.85"×47mm/1.85"×15mm/0.059" Weight: about 54g Color: Bronze Package Includes:1pc Retro Pocket Watch Compass(with hanging chain) Features: brand new and high quality. The product is zinc alloy electroplated and polished. It features mainly retro style and the appearance is exquisite. It can be automatically opened, easy to carry. It can be taken as a gifts, suitable outdoor sports, mountaineering, tourism, etc. Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!