Case-it King Sized Zip Tab 4-Inch D-Ring Zipper Binder with 5-Tab File Folder, Blue, D-186-BLU 3-Ring Binder, 4 Capacity, Ripstop Materials Square Pattern Traps Punctures to Prevent Tearing 5-Color Tabbed Expanding File for Important Papers and Documents, Patented Angled Zipper Keeps Gusset Out of the Way When Writing Inside Mesh Pockets Holds School and Professional Supplies.Ring Size : 4 inches Zippered Binder Secures All Materials from Loss or Damage Handle and Shoulder Strap for Easy Carrying