018 mm Polypropylene;Letter-size zip closure document envelope with business card/ID slot on front; Features 1" expandable gusset and zipper top closure to keep papers from falling out; Opens on long side; Holds approx 100-150 A4 and letter size sheets; Business card slot measures: 4"w x 2.25"h, and holds approx 3-5 business cards; Product Size: 13.25" w x 9.5" h x 1" d;
