Clasp Envelope, 9 x 12, 28 lb Blue Wove, Double-Prong Metal Clasp, Deeply Gummed Flap, 10 EA/PK

9" x 12" Heavyweight Clasp Envelopes are an excellent solution for accessible storage or filing in your home or office. Heavy-duty, double-prong clasp and reinforced eyelet are durable enough for repeated use. Envelopes are made of 28 lb. blue stock that is great for extensive handling and mailing. Contents are protected during use to ensure they arrive unharmed. 9" x 12" size accommodates most documents without folding. Heavy gumming on flap keeps envelopes securely and permanently sealed.