The bold hues of the ColorLife? wallet improves organization with color-coding. Moisture-resistant acrylic-coated stock combines with a flap containing Velcro Gripper? closure to protect files. 3/4" Mylar? reinforced gussets. Expandable File Folder Type: Velcro? Closure Wallet; Size: Letter; Color(s): Dark Blue; Overall Expansion: 3 1/2".