With their vast array of papers, OCB constantly seeks ways to improve, as with this OCB King Size Slim Papers. These are the finest unbleached papers, in king size format. Because of that, the paper keeps its natural, slight brown color. OCB Unbleached Slim King Size Paper is made from cellulose and has a glue surface made from Natural Arabic Gum. The packaging is recycled, making this another environmentally friendly option from OCB