he Walls and the Floor border are Classic Beige Travertine and the inset is a basket weave onyx mosaic. I use and impregnating sealer like Miracle 511 on all porous stones. If you seal well, cleaning is easy. The main trick is to squeegy the shower and wipe up residual water after every shower...and I mean EVERY shower. This is the trick. Believe or not, that shower floor is 2 years old and looks exactly the same. You don't want ponding water on your floor because this leaves mineral deposits and soap scum.