Pihlgren and Ritola wallpapers are manufactured using traditional printing technique, high quality unbleached paper and water-based distemper paints. Every batch is unique and has its own beautifully handmade appearance. Our wallpaper is a product of traditional craftmanship, therefore minor variations within the design are to be expected. Before hanging the wallpaper, make sure that the products are equivalent to your order and batch numbers are equal. Should you have any concerns about the quality of wallpaper, please contact your retailer.