Using this eSUN Glass PLA 3D filament is easy. First, make sure your 3D printer's nozzle temperature is set between 190°C and 220°C. Then, load the filament onto your printer. Since it's vacuum - sealed, keep it sealed when not in use to maintain its quality. When printing, you'll notice the shiny and transparent finish it gives to your projects. As for maintenance, store the filament in a cool, dry place. Avoid exposing it to high humidity as it can affect the filament's performance. If you run into any issues during printing, double - check the temperature settings and make sure the filament is feeding smoothly.