This balisong fans open around its freely pivoting blade, the signature flourish that keeps butterfly knives outlawed in many countries. The Doppler finish swirls black and silver metallic paints on a marbleizing medium, then candy coats them so each piece is one of a kind. Phase 1 is one of the named pattern tiers buyers seek out across the Doppler lineup.
Butterfly Knife (Doppler Phase 1): design, wear and market
Doppler phases
Doppler and Gamma Doppler are split into phases. Standard Doppler has Phase 1–4 plus the rare Ruby (red), Sapphire (blue) and Black Pearl. Gamma Doppler adds Emerald as its top phase.
The phase is part of the item and changes both the look and the value — Ruby, Sapphire, Emerald and Black Pearl trade well above the numbered phases. On this page the phase is shown in the name and selectable where variants exist.
Spectrum Case
