Durable to Use: The bookmark resin mold is made of quality silicone, flexible and durable, not easy to break, tear resistant and easy to clean; Resin molds should be stored at room temperature and protected from direct sunlight, clean the mold after each use to maintain shine and extend the life of the mold. Proper Size: our rectangular silicone bookmark mold is about 12*3cm, the thickness is 1.5mm, the suitable size helps you to create a beautiful personalized bookmark, the rectangular shape allows you to get a bookmark with straight and smooth edges. Easy to hang: Each DIY silicone bookmark mold features a pin design, and the height is higher than the edge of the mold, so that there is a hole in the bookmark without any other punching tools, you can hang the tassel on your bookmark easily. DIY your own crafts: the resin jewelry molds epoxy are suitable for making various kinds of bookmarks, necklaces, key chains, jewelry, home decorations, pendants, desk decorations and more, then you can send them to your friends or your family as a gift. Please note that the finished bookmarks in the picture are not included in our package.