Using NinjaFlex is a breeze. First, make sure your 3D printer is suitable for 1.75mm filament, like fused deposition 3D printers or those that can take ABS and PLA. Load the filament carefully into your printer. When printing, you'll notice it feeds smoothly thanks to its special technology. As for the color, the sky - blue NinjaFlex will give your prints a unique look. One important thing to note is that since it's a flexible filament, you might need to adjust your printer settings a bit for the best results. After use, store the filament in a dry place to keep it in good condition. If you want to clean your prints, use a soft cloth. Enjoy creating with NinjaFlex!