The Machina Screwpost Covers are crafted of satin finish aluminum. Standard screwpost configurations make them compatible with all major brands of sheet protectors, mounting sheets and adhesive hinge strips. Designed to lie perfectly flat when opened, the Machina Screwpost Cover is as functional as it is eye-catching. Nylon jackets (sold separately) are available for all formats to protect your portfolio from light, dust and scratches. Expand the portfolio's capacity with standard screwpost extensions (sold separately).

Dimensions: 12.75x13.5x.75. Jacket: 1B