HQA WOOD is a modified PLA based type of filament, that smells and feels like wood. The different wood-types enable us to manufacture this wide range of natural wood colors. The filament is tough and prints very easy. We recommend a nozzle size of 0.5mm or larger for best print performance. We at HQA believe that this makes our WOOD, one of (if not the) best, performing wood filaments on the market.