Pina Zangaro Bex 11" x 17" x 1" Clamshell Presentation Box, Charcoal (44407) Inside dimensions: 12 x 19 x 1 Made in the USA of charcoal grey archival bookbinders cloth and extra-rugged binder board construction Specifically designed to hold standard format Pina Zangaro screw post Presentation Books. Available in four formats. They feature sturdy sidewalls for maximum strength and a center notch for easy removal of contents.