... underwater as a shower tile, pool tile, or spa tile Shape OptionRound, Oval, Square, Rectangle, ect.Thickness Optiona) 0.3" (8mm ... Thickness Option: 4mm, 6mm, 8mm, 10mm • Chip Size:square,strip, diamond, subway, irregular etc. CONTACT INFORMATION TEL0086 571 88964873FAX0086 571 88964782 ... alkali-proof.9. Available in different shapes such as square, round, circular and other abnormities you want.