Skeleton Knife | Ultraviolet was added to the game on March 31, 2025, in the Spring Forward update and became one of the rare special items in the Fever Case. The skin was created by Valve. The Skeleton Knife appeared in the game in 2019 as part of Operation Shattered Web and first received Chroma finishes in the Fever Case.
The entire blade is painted matte black. The handle is wrapped in purple tape.
The skin's Float Value ranges from 0.06 to 0.80, which makes Skeleton Knife | Ultraviolet available in all exterior conditions. The first minor abrasions appear in Well-Worn condition. After approximately 0.41, they become clearly noticeable but remain acceptable. After approximately 0.70, the degree of wear increases noticeably. At the highest Float Values, the abrasions become especially noticeable and have a significant impact on the appearance of the blade.
The pattern index does not affect the appearance of the skin.
The quality of Skeleton Knife | Ultraviolet is Covert. The skin is available in a StatTrak version. The skin is part of the Ultraviolet series.