The page presents a catalog of 35 different skins for the Butterfly Knife, indicating the rarity (all — Covert), the range of conditions (float), and information about the StatTrak versions. Each variant has its own price — from basic to super premium. Additionally, you can view the trading history and compare variants at https://dmarket.com/cs2-wiki/weapons/butterfly-knife/ . For example, the Gamma Doppler Emerald skin is only available in certain conditions (Factory New, Minimal Wear) due to the narrow range of float.