This is a set of 4 moisture-proof cases for 3D printer filament, using cases made by Inomata. These are no longer needed due to the introduction of an AMS, so they are being sold cheaply as junk items. - They have been used and their functionality has been confirmed, but please be aware that they show signs of use and are handmade. - Please replace the desiccant. - Filament is not included. - Quantity: Set of 4 - Compatible Filament: 3D printer filament Thank you for viewing.