Package: 6 Rolls; Size: Width: 3mm (0.12in), Width: 6mm ; 1 roll total length approx : 66 m / 72 yards/ 21 6.5 ft Self adhesive, easy to stick and tear off and leave no residue on the surface. Perfect for you to make straight lines on dry erase board, and will not leave creases or bubbles. Cut to proper length you like, easy to use Wide Application: the graphic tape suitable for various of surface, such as whiteboard, blackboard, plastic, glass, paper, wood, metal, ceramic and so on.Perfect for grid creating, marking your paper or using as craft tapes on your scrapbooks, notebooks, journals, paper crafts, fashion designs. Can be used in all kinds of surfaces, glass / whiteboard / paper / wood / metal / palstic, ect. Before using tapes, make sure the surface is clean and dry, can be kept for a long time.