【MANUAL REWIND DESIGN】This filament spool rewinder uses a hand-crank manual winding mechanism that requires no external power. It supports standard 1kg filament rolls, allowing you to quickly re-tangle loose or leftover material and reduce waste 【DUAL SPOOL BRACKET STRUCTURE】Equipped with two rotating shaft holders to accommodate two spools simultaneously. The smooth bearings reduce pulling resistance and prevent breakage or knotting, making this 3D filament winder more efficient for sorting and rewinding tasks 【UNIVERSAL COMPATIBILITY】Compatible with most standard 1kg PLA, ABS, and PETG 3D printing spools on the market. A built-in wire guide fixes the feeding path, preventing line deviation and messy winding during the rewinding process 【STABLE & DURABLE BODY】The integrated blue base frame features a hollow lightweight design for firm placement on desktops without tipping. This filament organizer is sturdy and wear-resistant, offering long service life for daily studio and DIY use 【COMPACT SPACE-SAVING SIZE】The minimalist footprint won’t take up much desk space. This filament rewinder is ideal for organizing residual filament, splitting large spools into smaller rolls, and providing convenient storage for all 3D printing enthusiasts and makers