DrawnBy: designs are printed by indelible ink and SHOULD NOT be washable when you apply friction on the DrawnBy: Washable Silicone Mats or clean them with soap and water.We do however spot printing errors when the mats are shipped in from time to time and have tried our best to remove such errors so that customers receive our best stock! Our eyes are only human though, so one or 2 imperfections may slip through our Quality Control processes. This is why we offer exchanges within 10 days if you find any imperfections on your mats, as long as they are still in their original packaging.The imperfect mats are not perfect, but they are still good and we will regularly offer these DrawnBy: Washable Silicone Mats for massive discount with proceeds to go to a local charity.If you do find that the ink on your DrawnBy: Washable Silicone Mats are fading, do drop us a line and we will do the necessary investigations and feedback to prevent this from happening in any of our further prints.Product FAQ