【Note!! Settings】In normal circumstances, we recommend printing this PLA filament at temp of Nozzle 200°C-230°C, bed 50-60°C, 30-80mm/s. ① If print High Speed like 120-350mm/s, nozzle ≥ 230-240°C is recommended. ② When room temp is low, increase the Nozzle and Bed temp to ensure that the filament adheres better to bed ③ If the surface of the print appears somewhat matte, increase the temp makes the surface clearer 【Color Change PLA Filament】This 3D printing filament consists of new specialized color-changing powder materials that react to different levels of light. Sunlight effect is best. The color effect on different sides / angles of prints will be influenced by size of prints, infill, thickness and shape 【Chameleon Color Change】This Chameleon reflects different colors in 1 roll. For example, Nebula Purple includes: Dark Purple, Blue, Spark Blue and Mix. The diameter tolerance of the PLA fiber is 1.75mm +/-0.02mm! Non-turnover characteristics achieve certain output quality and stable printing. Bringing higher precision printing experience .