The Twist and Bind Machine Free Binding Kit is as easy as print, twist, and go. It features everything you need to produce 4 spiral bound documents. Perfect for presentations, school reports, proposals, and more. It's easy to assemble and just takes seconds. Kit includes 40 sheets of pre-punched, printer-safe paper, and 4 black spiral coils, clear front, and black grain covers. Save money by binding documents yourself.