It has come to my attention that some of my recently sent out Tile sets did not have a white backing applied.
If you received a set of my Tiles and they where not white on the back, under the liner where the adhesive is, then please contact me so I can send you a replacement set.
I don't think that there are more that 20 sets that shipped like this, but I would rather replace them than have them being used like this.
The colors on the tiles are not opaque by themselves and need that white coat in order to not seem transparent.
Thanks, to Dan Harris (cubestation.uk) for finding this error.