We import the blocks from the quarry in Canada directly. Natural sandstone1) Finish: polished, honed, flamed, bush-hammered,line-chiselled,natural,sand-sprayed, etc2) Sizes available: a) 300 x 300mm (12" x 12"), 300 x 600mm (12" x 24") b) 400 x 400mm (18" x 18") c) 600 x 600mm (24" x 24"), 600x900mm (24" x 36") 4)2400upx1200upx20mm,25mm,30mm,40mm,50mm,60mm;3) Thickness: 1cm, 1.2cm, 1.5cm, 2cm, ...