Very white, solid and smooth carton without 'sticky' to act. My Epson C2900DN pulls the sheet clean through and the toner securely holds (setting thicknesses cardboard choose, without duplex.) But I recommend everyone, then 'empty' to print the back manually again to neutralize the strong curvature occurring the carton. Then can the carton without problems 'flattening' to the curvature finally rid of them. Top recommendation for noble deeds, etc.!