... stones, Cubes, Mosaic & Borders,Sculptures,Tombstones and Monuments. 2.Tolerance: Thickness 1cmTolerance:+-0.5mmThickness 2-3cmTolerance:+-1mmThickness up 5cmTolerance:+-1.5mm ... ,step etc.5.Normal size:30.5x30.5cm,40x40cm,60x60cm,thickness:1/1.2/1.5/2cm etc. customized size are ...