swimming pool surround, regular size is 
1.Thickness: 2cm,3cm,4cm;
2.Size: 20x40cm,30x30cm,30x60cm,40x40cm,60x60cm, 60x90cm, we can make your sizes. 
Regular finished is polished,honed,antique,bush Hammered.
Basalt tiles applicate in flooring and cladding.