20mm top bucket
60mm tall
25mm one-piece bottom dish
3mm thick wall
Beveled edge
Maria joint
Premium ground joint with engraved logo
Fully worked seal
3 precision cut slits

The slits are cut at an angle, therefore air enters the column at an angle, causing any pearls or pillars to spin at light speed (see second photo)

Dini (δίνη) means vortex