The Large PECS Communication book is a 10 1/4" x 9 1/4", 3-ring binder that is great as a first book for new PECS users. This picture-ready PECS Communication Book is made of a thick, poly plastic material that is smooth to the touch, yet extremely durable. Includes strips of VELCRO® Brand hook, two non-tabbed Insert Pages and one Sentence Strip.The back of the book is longer than the front to accommodate the Sentence Strip™. This allows access to the Sentence Strip no matter which page in the book is in use. The book includes strips of VELCRO® Brand hook, two non-tabbed Insert Pages and one Sentence Strip. Fasten on one of our PECS Communication Book Straps to the spine-attached rings and the book becomes portable! Images sold separately. Sentence Strip may differ in color from those pictured. Actual book colors may vary due to computer monitor display.