Xicube Mini SQ-1 SQ-2 SQ-0 3.5cm

Really like these little cubes, they turn great and you can mix and match the parts to create bandaged square puzzles. I bought all 3 and have been making different combinations.

They only use a single screw so its not too hard to swap pieces around and you can adjust the tension to make the top and bottom layers easier or harder to turn.

Only minor thing is the small stickers can come loose easily, it does come with extras.

Cool little 3D-printed puzzle. It turns well - in fact, the top and bottom layer turn TOO well! They have almost no friction, so they move constantly while solving the puzzle. There should be some clicking mechanism or magnets to hold them in place. Maybe this design could be improved in the next iteration.