The traditional technique of faux bois involves hand-applying concrete over a metal mesh frame. Over time, some hairline cracks will develop, but this will not harm the furniture’s structural integrity. Variations in color may occur, and the table will darken over time. Please note: Hairline cracks are normal and do not affect the structural integrity of this furniture. If this is not acceptable for aesthetic or other reasons, we recommend that you buy furniture of a different material. Contact our Furniture Specialist with any questions at 877-422-9688.