OCB Spanish Size Rolling Papers King Size is part of the Classic Black Label range from OCB. The Black Label range is the premium range from OCB and sealed their reputation as the leading cigarette rolling paper in the world. These are the most popular size of paper in Spain. Each paper is ultra thin, lightweight, easy to roll and burns slowly. These high quality rolling papers are close to transparency and burn down evenly. Each single leaf is made of a watermarked pure flax paper for quality assurance and Arabic Natural Gum that has been extracted from East Africa which also makes it 100% Vegetarian Organic.