This is a custom-designed balisong, commonly known as a butterfly knife. The defining characteristic of this weapon is the fan-like opening of a freely pivoting blade, allowing rapid deployment or concealment. As a result, butterfly knives are outlawed in many countries. It has been painted using a vibrant zigzag hydrographic pattern.
Garry's Mod
Counter-Strike: Global Offensive
Counter-Strike 2
Left 4 Dead 2