It is an addition to the Voilà Table Stick Clamp
https://www.printables.com/de/model/445886-voila-table-stick-clamp-100mm
https://www.printables.com/de/model/455702-voila-table-stick-clamp-60mm
Needs additional :
2x 6000-2RS Bearing 10x26x8mm Sealed Ball Bearings or similar
1x M3x10mm Screw
The author marked this model as their own original creation.