This adds a soda bottle thread to the bottom of a 36 oz UTZ Pub Mix container so it can be attached to the vertical "pop" bottle adapter created by VitranAccad. After the bottom of the Pub mix container is cut off just below where the ribs end, It can be shoved into the top of the adapter and the walls gradually get narrower so friction will hold it in nicely. I purchased the 32oz pub mix at Sams club. Don't forget to clean it well because the savory blend of crunchy snacks won't make for good filament. It is a nice hopper as it is clear and comes with large opening on the top with a screw on lid. I attached soda bottle thread specifications if you want to make improvements... but it seems to work well. I took some shortcuts because the finer details will be lost in printing with my printer. I had trouble printing with the large opening down, but printing with the narrow opening on the bed worked well. I used a water based glue stick to hold it down, but was nervous it would fall over the entire time.