Traditional real bone folder for bookbinding, leather and paper crafts. Vintage Paper Co, UK. Real bone folder for bookbinding, leather working and paper crafts. Size is 5 inches Paper & leather crafting tool. This bone folder creaser burnisher is pro standard and can be used in every studio, office and arts and crafts room. Great for smoothing, folding, creasing, burnishing and scoring paper, cutting clay, and getting into hard to reach corners. Fabulous quality, beautifully crafted. Each bone folder is carved by hand. Vintage Paper Co UK folding bones are made from durable, genuine ox bone, not inferior plastic or wood. Our raw materials are ethically sourced.