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 with black and silver metallic paints using a marbleizing medium, then candy coated.\n\nGetting lost in its color can prove fatal
The Doppler series was introduced in the CS:GO Gamma Case in 2015. The Doppler pattern is known for its swirling colors and is available in multiple variations, including Sapphire, Ruby, and Emerald.
The Doppler Butterfly Knife features a sleek, dark blade with swirling colors ranging from deep blue to purple, depending on the variation, with a black handle.
The Doppler series is highly regarded for its aesthetic appeal and rarity, especially in Sapphire and Ruby variants. It is a favorite among collectors and players seeking a unique look.