Protect schoolwork, reports, contracts, tax documents and other important paperwork with these colorful covers. These 13 1/8" x 9 1/2" polypro envelopes have a snap closure and can hold between 50-100 letter sized pages. Better than manila folders that can open and spill. Makes a great giveaway at trade shows, conventions and other marketing or social activities and events. Available in a range of translucent and solid colors. Add your school, sports team, organizational or company logo or message to customize.