10 x 13 extra heavyweight 32 lb. brown Kraft clasp envelopes, excellent solution for accessible storage or filing. Whatever your home or office needs are, clasp envelopes can make staying organized easier! Great for projects and filing. Quality Park's double prong clasp and reinforced eyelets are durable for repeated use. Envelopes are made of heavy-duty lb. brown Kraft stock that is great for extensive handling. Contents are protected during use to give you assurance that it stays unharmed. 10 x 13 size fits over-sized documents perfectly. Heavy gumming keeps envelopes securely and permanently sealed when needed. Purchasing envelopes will be at a minimum with the convenient 100 count giving you more time to concentrate on business. Let Quality Park be your envelope source! See our array of other envelope options to fit your business's needs!