Round Tile 2x2 with and without stud holder photo?

Markyd7

Round Tile 2x2 with and without stud holder photo?
The one I have had a small cross underneath.

Graham

Stud holder is new mold - where you see x is now a O - so that the tile will mount on a stud in the center - still mounts same as old mold as well.

Maybe could be named better? Just seems "stud holder" has become the name on other parts - so the opposite is "without" or for bricks (1x2x2) axle/stud

Markyd7

Thanks