Magnetic retriever & cleaning aid

Comes in handy while cleaning glassware that contains a medium to small magnetic stirrer bar.

Similarly, helps in dispensing liquids from vials, cuvettes, flasks, and glassware while preventing the stirrer from coming out.

Also used to retrieve magnetic stirrer bars. 

This model takes 1.2 cm in diameter (2 mm in height) magnets.

For an alternative version with multiple sizes, please check this design: https://www.printables.com/model/958970-magnet-rings-retriever-for-stir-bar