Some of our images are shown witha background. When your mosaic purchasearrives there will be no background. These are not set as a platform or tile background. The individual color tiles are adhered to amesh material to make the whole design image. Grout, thin set, marble dust, etc. will go between the tile pieces and over the mesh material. You will not see the mesh after installation.
This is ceramic tile and thethickness varies. Most will be approx.¼" thick.