The Filamentalist is a passive (no motors or electronics required) integrated buffering and spool holding multi-material unit (MMU) solution. It provides space savings and potential filament path reduction that comes with using paths from spool to buffer to MMU. The Filamentalist uses the force delivered by the MMU gear motor along the filament to load and unload to and from the filament spool. Color: As Shown Material: plastic Specification: B Package Contents: 1* Filamentalist FV3 Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.