Use this Bi-Office Gridding Tape with your whiteboard to create a grid for planning, teaching, learning, presentations and more. The tape is self-adhesive for easy application to your board. This pack contains 1 roll of black tape measuring 1.5mm x 10m for finer gridding lines. Gridding tape for use with your whiteboard For planning, teaching, learning, presentations and more Self-adhesive for easy application Size: 1.5mm x 10m Colour: Black