This set was made to be used with a standard Ball brand mason jar. The jar is painted to block light from reaching the coffee. The spoon holder collar is just big enough to slide over the rim so it sits just under the lid. The funnel is for adding fresh coffee to the jar so it doesn't spill. This set goes in tandem with my knock box and tamper set for here https://www.thingiverse.com/thing:2963870
Printer Brand: Prusa
Printer: i3 MK3
Rafts: No
Supports: Yes
Resolution: .15
Infill: 20
The author marked this model as their own original creation. Imported from Thingiverse.