Custom Binders & Folders, Letter-Size Document Envelope - Polypropylene & Snap-Closure, Made of 018 mm Polypropylene Letter-size envelope with poly snap-closure Ideal case for homework, documents, notes, coupons or photos Opens on long side Holds approx 50-100 letter size sheets Product Size: 13.125" w x 9.5" h Deco Eligible ... #PF200 $1.78/each.