The QUIKNIP Book Press was developed in consultation with Peter Verheyen, professional bookbinder and conservator in Syracuse, NY. Designed for casing-in, pressing signatures before sewing, and pressing after gluing up spine. Workspace: 11.5 x 16 inches between the posts. Daylight: 4 inches as shipped. EXPANDABLE Comes with a post extension set to easily alter arch height. Baltic birch, hand crafted, fully assembled, maintenance free. Made in the USA.