Rope I.D. Markers allow you to clearly and easily write, type, or stamp identification on ropes up to ? (16 mm) in size. This ¾ by 1 in (19 by 25 mm) area gives ample space for identifying marks. The packet includes 60 markers and for permanence, when used in conjunction with environmentally friendly Whip-End Dip Rope Sealer, provides lasting I.D. on your rope. Clear and self-laminating this is a great product.