- Made of real H-59 brass, 18mm Ultra-Thick, It won't hurt your fingers forever
- The surface are polished carefully, very smooth
- No spike, single finger, a normal ring profile. It can pass polices' security check easily.
- CNC processing with Computer Carving Machine, all details are treated very carefully.
- This is the Best Self Defense Tools
- Diameter of the hole:23mm
- Size:56mm x 36mm x 18mm
- Weight：192g