Flip knives sport a Persian-style back-swept blade with an acute point. While the point itself may be fragile, the overall design of the flip knife's design is surprisingly durable. 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
Introduced in 2014 as part of the Spectrum Collection, the Doppler Flip Knife is a rare skin obtainable from weapon cases and trade-ups. It features a unique pattern with multiple phases.
The skin displays a swirling, metallic pattern with shades of blue, purple, and black, resembling a doppler effect. It has several phases, including Ruby, Sapphire, and others.
Highly coveted due to its rarity and stunning visual phases, it is one of the most valuable skins on the market.