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PolyBox™ is a filament storage box that allows you to store your materials in their optimum printing environment while still being able to print with them. PolyBox™ features a thermo-hygrometer to monitor your filaments inside the box. The humidity is regulated by large desiccant bags which absorb moisture from the air inside the PolyBox™, specifically designed for hygroscopic materials such as PolySmooth™, PVA or Nylon. The PolyBox™ can house two 1kg spools simultaneously or one 3kg spool and is compatible with both 1.75mm and 2.85mm filament diameters.