SKILCRAFT 7530-01-556-7914 Pressboard Classification Folder, Letter Size, Dark Blue (Box of 10) Folder is constructed of heavy-duty 25 point pressboard Reinforced Tyvek gusset bottom expands up to 2-inches Outside cover is made of 25pt pressboard using 30 percent post-consumer waste (PCW) materials, and the kraft dividers are made with 30 percent PCW Made with Pride by Americans who are Blind