Mead Trapper Keeper Snapper Trapper 2-Pocket Portfolio with Prongs, 11.88 x 12 x .12 Inches, Purple (72666) Snapper Trapper is a durable plastic strip that lets you snap your folder in and out of your 3-ring binder without the hassle of opening the rings Two vertical pockets and 3-hole prongs securely hold all of your sheets and notes with a .50-inch capacity Fully functional both in and out of a 3-ring binder; 11.88 x 12 x .12 inches overall Signature vertical pocket design has kept students organized for years Available in 4 colors  color code your subjects and homework