Made of pressed hardboard, the Tera Screwpost Portfolio has a slightly retro look, yet is contemporary and highly functional. The base price now includes 20 archival sheet protectors along with the front and back covers and 3/4" screwpost mechanism. Customize your Tera Screwpost Portfolio by using the selection boxes on this page to choose from the following accessories: Archival Page Protectors, Pre-Punched Inkjet Paper, Adhesive Hinge Strips, Black Zippered Nylon Jacket or Padded Transport Jacket, and Screwpost Extension Pack (1/2" and 1/4" extensions). Select your choice of accessories from this page then click the ORDER button to add your completely customized screwpost portfolio kit to the shopping cart. This Screwpost Portfolio Book will hold up to 20 pages with the included screwpost hardware and up to 40 pages with the Screwpost Extension Pack (sold separately).