K black limestone also knows as monsoon black limestone.Available thickness: 22-30mm both side natural.20mm, 25mm, 30mm top surface natural smooth and natural and back calibrated.Sizes: 60x90, 60x60, 60x45, 40x40, 60x40, 60x30, 30x30, 15x30, 20x20, 10x20cmEdges: handcut and machine cut both