We designed THE FILAMENT ReFill Filaments with your comfort in mind, but also with a strong focus on environmental protection. They are rolled on an eco-friendly cardboard core, which is fully compatible with BambuLab reusable rolls - so there is no need to print additional adapters. ReFill Filaments are environmentally friendly, reduce plastic waste and support sustainable development. If you don't have BambuLab reusable coils, you can easily download and print a simple coil model on THE FILAMENT website. This way you can enjoy using ReFill Filaments without having to worry about compatibility with your printer, while respecting the environment.