Pina Zangaro Carbon Fiber 8.5x11 Landscape Screwpost Binder, Black Does not include inserts. For best insert compatibility, use Pina Zangaro Pro-Archive Sheet Protectors, Pina Zangaro Adhesive Hinge Strips or Pina Zangaro Scored Inkjet Paper. Protect your presentation with the Pina Zangaro Nesso Presentation Jacket. Extraordinarily lightweight at just 9 oz. (11x8.5 format) Includes screwposts to accommodate up to 25 inserts (50 sides). Screwpost design allows for easy adding/subtracting of inserts, lays flat when open. Pina Zangaro is designed and made in California, USA, we specialize in art and document presentation. To increase capacity, purchase separately the Pina Zangaro Screwpost Pack in zinc or black.