Quality Park 10 x 15 Clasp Envelopes with Deeply Gummed Flaps - Clasp - #98 - 10" Width x 15" Length - 28 lb - Gummed - Kraft - Kraft - 100 / Box 10" x 15" clasp envelopes are made with heavyweight, 28 lb. brown Kraft, providing an excellent solution to storage or filing. Clasp envelopes are great for projects and filing and make staying organized easier. Double-prong clasp and reinforced eyelet are durable enough for repeated use. Heavy-duty stock is great for extensive handling and mailing. Contents are protected during use to give you assurance they arrive unharmed. 10" x 15" size accommodates oversized documents without folding. Heavy gumming keeps envelopes securely and permanently sealed when needed.