100% Natural Marble : Made of pure italian bianco carrara white marble ,mesh back design Package: 5 sheets/box, 12.32″ x 10.74″ x 5/16″, Polished surface (Gloss), white with gray veins Buy Guarantee: Shipping by Amazon, damaged carrera marble mosaic tiles replace for free, returns available High quality: We have a professical qc team for quality checking，carefully selected, consistent in size and finish, each piece is unique due to these penny round tiles are made of natural stone Samples are highly recommended for a better assessment of the current batch of this product before commitment to a larger purchase