Fun2 Play Acrylic Whiteboard is designed to nest inside the Fun2 Play Activity Tray. Ideal for art and craft, manipulative play and construction. Constructed of acrylic, making it durable and scratch resistant. Combine dry erase designs with manipulative play to create patterns and art or to practice algebraic equations, counting and sequencing. Use the whiteboard to draw your own game boards for collaborative play. Square with 19.7" sides and 0.08" thick.