【Hubless PETG Refill for Bambu Lab Reusable Spool】This hubless PETG Filament is designed for the Bambu Lab reusable spool, Marswork metal spool and the upcoming detachable spool from CREALITY. Perfect fit for Bambu lab A1/A1 Mini/X1/X1C/X1E/P1/P1P/P1S 3D printers. By utilizing hubless filament, millions of plastic spools will be reduced annually. 【Toughness-Enhanced PETG】Creality PETG filament combines the advantages of PLA and ABS. Eco-friendly, odorless and non-toxic. Its high toughness feature helps prevent cracking and warping, enabling excellent 3D printing results. It is recommended to use a printing temperature of 220-250°C and a base plate temperature of 70-80°C for better printing results. 【High Precision】Creality PETG filament boasts a diameter of 1.75mm, ensuring utmost accuracy with a tolerance of only +/- 0.03mm. With strict quality control and impeccable dimensional precision, Ender PETG filament guarantees a smooth and steady feeding during printing. 【Tangle-Free, Neatly Spooled】Creality guarantees that 99% PETG filament is tightly and neatly spooled using fully mechanical winding, which effectively reduces the occurrence of tangles, filament breakage and line snapping. 【No Clogging & No Bubbles】Creality filaments are thoroughly dried and carefully vacuum sealed to protect them from moisture and dust, which ensures that there will be no issues with clogging or bubbling during printing.