Porcelain ceramic tiles are very dense and hard, while the surface has a soft sheen, they have a slight texture to the touch.

These porcelain ceramic tiles are very hard to cut, best used whole or broken and nibbled into a shape.

When grouting make sure to clean up the surface of the tile as the grout is drying otherwise it will settle in the textured surface and is difficult to remove.

The tiles come in 2 sizes:

48x48x6mm, 250g is around 10 tiles and covers an area of 14.5x14.5cm (9 tiles) with no grout gap 

23x23x6mm, 250g is around 40 tiles and covers an area of 14x14cm (36 tiles) with no grout gap