Multi-purpose: The best crafts bone folder sander and crease mark, suitable for scrapbooking, card making, origami, handmade books, binding, sewing, office supplies, school hand-made DIY crafts, etc. Simple operation: Simply use a paper press tool to draw a line on the paper with a ruler, and then press and fold to meet the daily needs of DIY paper crafts. Package includes: 2 x bone clamps of different shapes 1 x ruler