The Butterfly Knife’s rating is based on several key factors. The first is the float value: the closer the value is to the minimum, the better the condition, which significantly increases its value. For example, some variants of the “Gamma Doppler Emerald” skin have a rather narrow float range, which is why they are only available in certain exteriors. The second important characteristic is the rarity of the skin on This site - designs from the Doppler or Emerald line are usually considered premium and cost much more. The third aspect is the presence of the StatTrak™ feature, which adds a kill count when using the knife, which also increases its attractiveness and price.
