As to the packaging, it comes with a sturdy box, on the inside there's a spool of vacuum-packed filament and desiccant to keep it dry. So you don't worry about it causing poor print quality or clogging the nozzle. Easy to Use: (1). Install the spool on the spool holder of a 3D printer, and preheat the nozzle. (2). Cut the top of the filament into a spire shape, and thread it into the extruder and feeding tube. (3). Manually push the filament through the feeding tube to the nozzle, until the filament melts through the nozzle. Precautions: When installing and replacing filaments, make sure to heat the print head (heated to above 230°C), otherwise the print head might get clogged. Material: Matte PLA Wire diameter: 1.75mm±0.03mm Melt flow rate: 14~20g/10min Net weight: 2.2lbs Melting point: 162.4 °C Tensile strength: 18.95~22.85MPa Elongation at break: 26.4~42.5% 3D Printer Filament Electronics