4). Common Specifications: 305mm X 305mm 400mm X 400mm 457mm X 457mm 600mm X 400mm 800mm X 800mm 5). Common Thickness: 7mm, 10mm, 12mm, 20mm, 30mm Many other marble tiles and slabs are available, plesae feel free to visit our showroom and website for more info, or enquire us at any of your convenience. Price Item: FOB Xiamen China Terms of payment: L/C, T/T Quality standard: Thickness tolerance: +/- 1mm Place of Origin: China Custom sizes and other thicknesses are avaiable.