The refill needs to be used with a spool. How to Print and Assemble Your Own Spool for Bambu Lab Refill Filament Product Features Easy to Print & Beginner Friendly Smooth Surface Finish Biodegradable Diameter: 1.75mm +/- 0.03mm Cautions for Use AMS & AMS lite Compatible New-user Friendly & Easy to Print Bambu PLA Basic is designed to be extremely user-friendly, making it an ideal choice for beginners or those new to 3D printing. What’s more, PLA Basic enables users to achieve high-quality prints consistently, without the need for extensive adjustments or advanced printing settings. High-printing Quality Bambu Lab's PLA filament stands out for its high print speed, and excellent appearance. Experience the benefits of smooth and flawless prints with superior quality that exceeds expectations. RFID for Intelligent Printing All printing parameters are embedded in RFID, which can be read through our AMS (Automatic Material System). Load and print! No more tedious setting steps. You can download additional product documentation below: 1. Bambu_PLA_Basic_MSDS 2. Bambu_PLA_Basic_RoHS 3. Bambu_PLA_Basic_Technical_Data_Sheet 4. Bambu Lab Reusable spool holder for spool-less filaments. Compatible with the AMS and AMS lite. Spool-Spacing-Shim, Spool-Narrow, Spool-Wide 🔗 Click the links above to view or download each document.