A3 Plastic Visual Behavior Display Board (Picture Communication Symbols) Uses only high quality Picture Communication Symbol images by Mayer-Johnson (used with permission). These are the most common visual symbols to be used to support the learning and development of those with learning disabilities, and therefore will be the easiest for individuals to understand and begin to implement. Highly durable, waterproof and resistant to grease. Can also be written on so that your product can be customized by you to allow you to customize for the individual person and purpose. All corners have been rounded to reduce the likelihood of scratches. All our products are made by hand, to order. They are usually dispatched within 3 working days. All products are made in a smoke and pet free environment. All in one board, ideal for display purposes. If you are interested in more than one of our products, please be aware that we always combine postage costs.