Item Granite Master Square Material Granite Application Grade Inspection Color Pink Edge Style Flat Flatness 0.000050 in per 6 in Grade A Length 12 in Surface Size 12 in x 12 in 300 mm x 300 mm Thickness 3 in Flatness Unilateral Tolerance (In.) 0.0012 Flatness Unilateral Tolerance (mm) 150 Surface Size (In.) 12 in x 12 in Surface Size (mm) 300 mm x 300 mm Weight (Kilograms.) 19 kg 12 in Weight (Lbs.) 41 lb