Presentation blinds wind down directly against a wall, so the blind can be used as a writing surface, with the support of the wall behind. As they consist of a printed pvc back sheet with a drywipe clear plastic front sheet this creates a pocket between in which any paper resource can be slotted and highlights or notes can then be overdrawn onto the plastic surface. A cheap and flexible way to make presentations and which rolls up unobtrusively when not required. This version has printed lines on the backing sheet, suitable for demonstrating writing skills in schools. Sheet size : 1110mm wide x 1480mm drop. Line spacing : 50mm.