Sleekportfolio Bamboo Natural 11"x17" Screwpost Presentation Book, Landscape Format Portfolio Case. [ MATERIAL ] This elegant, beautiful screw post portfolio presentation book is made of high quality bamboo. [ THICKNESS ] Both durable and lightweight, 1/4" thick Amber Bamboo panels give a high end finish that has a substantial feel when presenting your work. [ SIZE AND DIMENSIONS ] The finished portfolio dimensions are 11.75 x 15.25. These dimensions are ideal for most major brands of sheet protectors, mounting sheets, and adhesive hinge strips made for 11 x 14 landscape sheets of paper. For compatible accessories, search for SleekPortfolios Adhesive Inserts for our recommended method for adding your pages into your portfolio for a flawless lay-flat presentation. [ ACCESSORIES INCLUDED ] All of our portfolios include 2 sizes of screw posts to allow you to add up to 30 inserts into your portfolio (1/4 and 1/2 posts) and a microfiber cleaning cloth. We also include 3 screw foams to add better stability and keep your pages from shifting around. [ CUSTOMIZATION ] The engraved logo shown is only to provide example for how you can personalize your portfolio. This portfolio does not include engraving, and the cover will be blank (no logo/ design). Unfortunately we do not offer engraving services through Amazon.