★ Flip Knife | Doppler Phase 4 (Factory New)

The ★ Flip Knife | Doppler Phase 4 (Factory New) is a Covert ★ knife finish, a mostly blue marbled coat laid over a black base. Factory New covers the 0.00–0.07 band of the float scale, the cleanest grade available, and here that blue reads at its most saturated.

Design

Phase 4 pairs a black base with a marbled coat that leans heavily blue, giving the blade a deep, glassy look under most lighting. It carries the flavor line "Getting lost in its color can prove fatal."

★ Flip Knife | Doppler Phase 4 (Factory New) Float and Wear

Doppler on this knife is float-capped between 0.00 and 0.08, so only Factory New and Minimal Wear ever exist — the finish never wears past a near-mint look no matter the copy. At Factory New the blade sits at the very bottom of that range, keeping the blue marbling at its sharpest and most legible. In float terms, this grade runs 0.00–0.07.

Flip Knife | Doppler Phase 4 Rarity

Rarity: Covert ★ — this isn't an ordinary Covert skin but the gold-tier rare special, the "knife" slot that sits above every regular weapon grade pulled from a case. Landing one at all is the hard part, long before phase or wear enters the picture.

Flip Knife | Doppler Phase 4 Case and Collection

This finish isn't tied to a single collection — it comes from the Chroma line of cases, spanning the Chroma Case, Chroma 2 Case, and Chroma 3 Case. The rare-special ("knife") tier as a whole lands at roughly 0.26% per case opening, which is why most buyers pick one up on the market instead of chasing that pull.

Flip Knife Doppler Phases

Doppler splits into several phases on this knife, and Phase 4 is fixed on this copy for good — it never shifts with wear or trades. The gem phases, Ruby (red), Sapphire (blue), and Black Pearl (iridescent), sit well above the numbered Phase 1 through 4 in price and demand. Among the numbered phases, though, buyers gravitate toward the most saturated looks, and Phase 4's deep blue is one of those favorites.

StatTrak & Souvenir

A StatTrak™ version of this knife exists and tracks confirmed kills permanently, carrying that count through any trade or sale. There's no Souvenir version at all — knives are never included in Major-tournament souvenir packages, regardless of case or phase.

Flip Knife | Doppler Phase 4 Price

Factory New sits at the top of this phase's price ladder, ahead of Minimal Wear, and the phase itself trades in the high-end range for this knife — a thin market priced alongside the finish's rarer phases, though still shy of the gem-tier Ruby, Sapphire, and Black Pearl. It's available to buy on Skin.Land with instant delivery and no hidden fees.

FAQ

What case is the Flip Knife Doppler Phase 4 in?

It comes from the Chroma line of cases — the original Chroma Case, Chroma 2 Case, and Chroma 3 Case all carry Doppler. That spread across three cases is exactly why most buyers get theirs on the market rather than hunting one specific box.

Which Doppler phase is best on the Flip Knife?

The gem phases sit above everything else: Ruby (red), Sapphire (blue), and Black Pearl (iridescent) command the biggest premiums. Among the numbered Phase 1 through 4, the most saturated looks get picked first, and this Phase 4's rich blue marbling is one of the favorites in that group. The phase never changes once a copy is generated.

What are the best gloves for the Flip Knife | Doppler Phase 4?

Blue-toned gloves are the obvious echo here — anything leaning navy, teal, or icy blue plays off Phase 4's marbling instead of clashing with it. A black or dark gray pair also works cleanly since the finish already sits over a black base. For the best Flip Knife Doppler Phase 4 glove combo, lean into cool tones rather than warm ones.