Airtight Filament Storage Protection: Each filament storage box features a flip lid with a silicone sealing ring to help reduce exposure to moisture, dust and workshop debris. A practical 3D printer filament storage solution for opened PLA, PETG, ABS and TPU spools between print sessions Organise 4 Spools Clearly: This 4-pack filament storage set gives each spool its own clear container, helping you separate different colours, materials and partially used filaments without clutter. Check the spool type and remaining filament at a glance without opening every box Desiccant & Labels Included: Includes 4 x 4L filament storage containers, 8 x 50g desiccant packs and 18 identification labels. Use two desiccant packs in each filament box and label your spool by material, colour, brand, opening date or storage notes Fits Most 1kg Spools: Designed for most standard 1kg spools of 1.75mm PLA, PETG, ABS and TPU filament. Each filament container measures approximately 22.9 x 20.3 x 7.6cm, suitable for everyday 3D filament storage. Please check unusually wide spools before purchase Reusable & DIY-Friendly Box: Made from sturdy, impact-resistant material for repeated use in home workshops, classrooms, maker spaces and print farms. Experienced users can also customise the lid or side wall to create a personal filament feed-through setup