Overview Part folder, part tough guy. Designed to withstand frequent use and volumes of patient information. These 18-pt outer folders with 11-pt dividers are preassembled with single or double dividers and feature a tough Tyvek® gusset! You also get fasteners affixed to both sides of the dividers and inside the front and back of the file. Add in a reinforced Tyvek® spine and you’ve got yourself one tough folder. Expands to 1-3/4".