[Refill Freely, No Spool Waste] SUNLU Refill Filament 1KG, PLA, PLA+, PLA+2.0, PETG Filament, Compatible with 2025 SUNLU 3rd-Generation Reusable Spool and Bambu Reusable Spool dryer collection [3 levels of safety protection]

[3 levels of safety protection] PTC (Positive Temperature Coefficient Thermistor)

making your prints remarkably tough

[Open-Printer Friendly & Odourless]

It is virtually unaffected by ambient moisture

【3KG Large Filament Spool Diameter】With 3KG large spool

[Refill Freely, No Spool Waste] SUNLU Refill Filament 1KG, PLA, PLA+, PLA+2.0, PETG Filament, Compatible with 2025 SUNLU 3rd-Generation Reusable Spool and Bambu Reusable Spool dryer collection [3 levels of safety protection]Only for SUNLU 3rd Gen Reusable Spool and Bambu Reusable Spool [Detachable, Reusable and Environmentally Friendly] The third generation spool is designed with environmental sustainability as its core. Its detachable structure supports repeated use, significantly reducing material waste and minimizing environmental impact. [Innovative Cable Tie Design for Easier Filament Switching] A unique structural design allows users to secure unused filament with