Anyone knows about those sandlike shower rm. flooring?

Question:I want to do those sandlike flooring for my new flat,
I've seen these people do demos at shopping ctrs.
but cannot recall the name of the contractor...anyone has any idea what it is called N where to find the contractor?
Has anyone done this kind of toilets/shower flooring bfore?
Pls. give me feedbacks if their good or not, Thanks A Million !

Answers:
I just saw them doing a promotion in Thomson Plaza yesterday (6th May). It's pebble-wash of various colours & designs. They may still be there.