This bookmark sits flat inside your pages, and your decoration then hangs down outside the spine of the book. This hook measures 85mm long and has a hole at the end of the hook so that you can attach an embellishment of your choice. To do this, you may like to hang some ribbon or cord and tie a charm or some beads at the end of the cord. Or you may like to hang chains, charms - all sorts of things, by attaching to a large jumpring. You will find that these make great presents, especially for teachers! Make them as inexpensive or as swish as you like! This bookmark is a dark silver/nickel colour.