High-quality printing supplies brand Gembird.
In a cardboard box material can be found in vacuum packed with silica gel to absorb moisture and further card bundled with the recommended temperatures for the extruder and bed. Box coil weighs 1.4 kg.
thread is wound on the reel outer diameter 200mm width 67 mm and central bore 53 mm. Strings diameter 1.75 mm (with a tolerance of +/- 0.05 mm).