It Changes Colors TRONXY PLA Blue to White Color Change Filament, 3 Color Change in 1 Roll. So cool

👉Model becomes white:Blow the model with a heater, the model color changes white (warm air can make the model white); 👉Model becomes blue:Use the cooling fan to blow the model, the model color changes dark blue (cold air can make the model dark blue); 👉Model becomes Light blue:Light blue color at room temperature TRONXY Blue to White Color Change Filament on Amazon: JP:: US: DE: TRONXY CRUX1 3D Printer on Amazon: UK: JP: CA: US: DE: