THIS PRODUCT IS EXCLUSIVE TO CASS ART The Prat Pampa Refillable Spiral Book is an elegant way to display and store your work. It has a soft cover made from bonded leather with a lappet closure and Cass branding on the back. The spiral mechanism opens easily when you want to add, remove or replace pages, and can hold up to 20 sleeves. Each Pampa Refillable Spiral Book comes complete with x20 Prat Cristal Laser Sheet Protectors (mounting inserts made from acid-free black paper sealed on three sides).