Dovecrafts bone folder is a dual purpose tool for scoring and folding most types of paper, card, vellum and acetate. Use the pointed tip for scoring and the smooth rounded side to glide across the surface and create a neat fold. Scoring: press the pointed tip of the bone folder firmly onto paper or card and firmly run it down. Folding: after scoring, fold in half to create a slight crease and run the tapered edge of the bone folder firmly along the crease to press into a flat fold.