Thank you for viewing! This is a case to protect 3D printer filament from moisture, made using an Inomata Kagaku dry food stocker 6.0 airtight container. A silica gel packet, originally included with the Inomata Kagaku dry food stocker, is also included, so you can use it right away (with instructions). This is mainly based on Mugicha-san's spool design, further arranged for ease of use. It's less than half the price of the original (6500 yen → 2800 yen). [Reference Video & Mugicha-san's Page] https://www.youtube.com/watch?v=NSq9b6FQUHs [Spool Section] https://mugimugi159.booth.pm/items/5581594 [Fitting Section] https://www.thingiverse.com/thing:3058740