clasp envelope, 9.5" x 12.5", brown kraft, catalog clasp envelopes closure & gummed seal, 28lb heavyweight envelopes, great for filing mailing documents, 9.5 x 12.5 inches - 25 envelope pack 975 supply reusable envelope is ideal for office, school and home use. durable double prong metal clasp and reinforced eyelet. heavily gummed flap closure.