Children can come up and try this, drawing dot to dot to help improve the essential hand eye coordination needed for writing skills Low cost, roll up, front of class, teaching resource. A dry wipe plastic overlay with holes at top, to fit onto a flip chart easel. Size L. 810mm W. 540mm. Comes with storage tube. If using over a metal whiteboard surface, then our full range of magnetic accessories can also be used (See range : Home page/accessories) If purchasing for use with the Learning with Linden whiteboard easel(code 1a)and overlay holder, then you will also need to purchase 2 battens per overlay. (Choose - Overlay Battens : Home Page/accessories).