2 different height rods (70 mm & 100 mm) for retrieving stir bars from a beaker.
Pause print just after the hole for the magnet is starting to close over, insert magnet & resume print. Magnets are 3 mm height so pausing just above this will allow you to print around it.
Magnets are 8 mm diameter x 3 mm height. Can be found here (pk of 50 for ~€10): https://www.amazon.co.uk/dp/B074C79DJS?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
NOTE: Pause print just when magnet hole starts to close up.
The author marked this model as their own original creation.