The foot is made for rising the IKEA Nordviken dining table by 30 mm.
Before attaching the foots to the table legs, the original gliders must be removed from the legs and plugged into the foots on the bottom side.
Afterwards the foots can be simply pushed onto the legs.
I've printed the foots from Prusament PETG with Prusa Slicer standard stettings except a 25 % infill.
The author marked this model as their own original creation.