Superior sealing technology: Dual sealing rings and a moisture resistant protective strip shield your printing filaments from dust and humidity. The six-latch lid closes firmly to create an airtight environment for long term material preservation. Real-time humidity monitoring: Integrated electronic temperature and humidity display provides continuous updates at a glance. This helps you maintain optimal storage conditions, extending filament life and improving print quality. Wide compatibility for filament spools: Designed to accommodate 1kg spools with thickness 52 mm to 70 mm and up to 205 mm in diameter. Pneumatic connectors on both top and bottom enable smooth filament feeding and broad compatibility with various printer models. Transparent design for easy monitoring: Clear construction enables quick visual inspection of remaining material without opening the box. This visibility helps you plan replacements and maintain workflow efficiency during extended printing projects. Use scenarios: - In a humid workshop or climate-controlled space, store mixed filaments and rely on the humidity display to monitor moisture risk and keep filaments in good condition. - In a busy makerspace or production setup, the top and bottom pneumatic connectors support smooth filament feeding across different printer models. - During long multi-day prints, quickly check remaining material through the transparent design to avoid print failures and schedule replacements in advance.