Really Useful Box 64 Liter Snap Lid Storage Bin 64L - Walmart.com
5kg Drybox from a 19L 'Really Useful Box' album storage container. I made supports to help hold the weight (50% infill), put in a hygrometer, filament port, and added a silica desiccant
Go Shopping - Really Useful Boxes - 19 litre US Really Useful Box