Please be careful about the difference between single product and bundled packs; single products don’t have filaments. 【Say Goodbye to Poor 3D Printing by Wet Filament】Wet 3d printing filament will caused to stringing, clogging, poor adhesion, and Layer Shift. SUNLU FDM 3D Filament Dryer Enclosure can drying while printing to improve your 3D model, reducing the impact of the objective environment on the printing of 3d filaments. 【Personalized Temperature Setting】The user can adjust the temperature of the filament dry box according to different 3d filament type, ambient temperature, humidity and other factors. Adjustable temperature range 35℃~55℃. Suitable for more than 20 kinds of 3d printing filament commonly used in the market 【Personalized Drying Time Setting】 The default continuous drying time of the drying box is 6 hours, and you can also manually set the drying time. The time setting range is 0~24 hours. Commonly used 3D filament on the market under normal circumstances only need 3-6 hours of drying to achieve a good printing experience and printing effect. 【Compatible with 99% of 3D Filament Spools】A: Maximum capacity of SUNLU dry box is Φ210*85(H)mm. B: Compatible with all the mainstream 3D filament brands SUNLU, GEEETECH, ERYONE, ESUN, AMAZON BASIC etc.; C: Works perfectly with all standard filament diameters 1.75mm/2.85mm/3.00mm. 【User-friendly Design&1 Year Guaranteed After-Sales Service】 A: The design of two rollers inside the box allows you to print while drying; B: 2 inch large screen LCD monitor, can display temperature and time clearly and brightly; C: Ultra quiet design, less than 10db while operating, no disturbing of your life and work; D: Exquisite packaging design- best gift: Come on to buy one to present to your friends who love 3D printing