The blade of the knife is painted with metallic paints and adorned with a pattern of translucent wavy lines resembling smoke. The color scheme of the skin includes various shades of blue, dark blue and black creating gradient transitions. The handle remains unpainted.

The pattern index affects the ratio of colors as well as the location of blue, dark blue and black areas. Pattern variations with a predominance of blue on the play side of the blade are titled “BTA Blue”. Knives with only blue color on the blade resemble Ursus Knife | Doppler Sapphire and are titled Max Blue.




Float Value of the skin ranges from 0.00 to 0.08, which makes Ursus Knife | Doppler Phase 4 available only in Factory New and Minimal Wear condition. At levels of wear close to the maximum, the knife has small abrasions located on the spine.

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