{"product_id":"10-x-13-open-end-catalog-envelopes-with-clasp-closure-smooth-black","title":"10 x 13 Open End Catalog Envelopes with Clasp Closure - Smooth Black","description":"\u003cp\u003eOur review of these 10 x 13 catalog envelopes finds them best suited for anyone who needs a professional, no-fold mailing solution with a distinctive look. The pack of 50 smooth black envelopes combines a clean, jet black finish with a practical open-end design and dual closure options, so it is a sensible choice for small businesses, designers, or office managers who send documents without folding. The biggest reason to buy is the combination of size and presentation: you can ship full-size sheets and forms with a sleek exterior that helps materials stand out in a stack.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize 10 x 13 in:\u003c\/strong\u003e Allows you to mail standard and slightly larger sheets without folding, preserving presentation and readability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth 28 lb paper:\u003c\/strong\u003e Gives a refined surface and reasonable opacity for a professional mailed package or filing use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen-end design:\u003c\/strong\u003e Makes inserting and removing documents easier than side-entry envelopes, speeding up batch packing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGummed flap plus metal clasp:\u003c\/strong\u003e Offers two closure methods so users can choose quick resealability with the clasp or extra security with the gum flap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJet black color:\u003c\/strong\u003e Provides a distinctive, professional look that helps promotional materials and important documents stand out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese envelopes are ideal for small businesses, creatives, and office teams who need to send or organize full-size documents, portfolios, or promotional packets without folding. The black finish is particularly useful for marketing materials, photo proofs, or anytime presentation matters.\u003c\/p\u003e\n\u003cp\u003eThey are less well suited to heavy-duty mailing where rigid protection is required or where very thick paper stock is preferred; some users report the paper feels thin and the metal clasps may loosen if the envelope is bent frequently, so those needing rugged long-term storage should look at heavier mailers.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAttractive \u003cstrong\u003ejet black\u003c\/strong\u003e finish that elevates mailed materials and marketing pieces.\u003c\/li\u003e\n\u003cli\u003eConvenient \u003cstrong\u003e10 x 13 in\u003c\/strong\u003e size that fits full sheets and larger documents without folding.\u003c\/li\u003e\n\u003cli\u003eDual closure options give flexibility: quick clasp access or reinforced gum seal for added security.\u003c\/li\u003e\n\u003cli\u003ePack quantity of 50 is practical for small office runs or event mailings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePaper is 28 lb and some customers find it on the thinner side for repeated handling.\u003c\/li\u003e\n\u003cli\u003eOccasional reports of metal clasps loosening or tearing when the envelope is bent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eJAM Paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e10 x 13 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e50 envelopes per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePaper weight\u003c\/td\u003e\n\u003ctd\u003eSmooth 28 lb paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosure\u003c\/td\u003e\n\u003ctd\u003eGummed flap and folding metal clasp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor anyone who needs to send full-size documents with a professional look, these 10 x 13 black clasp envelopes offer good value: the size and presentation are the primary strengths, and the dual closure adds useful flexibility. They are a smart pick for presentations, promotional mailings, and routine office filing, though those needing very heavy-duty protection should consider stiffer mailers.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these envelopes suitable for mailing standard letters?\u003c\/strong\u003e\u003cbr\u003eYes; the 10 x 13 in size accommodates standard 8.5 x 11 in sheets without folding, which is useful for forms and larger documents.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the envelopes close securely for mailing?\u003c\/strong\u003e\u003cbr\u003eThey include both a gummed flap and a folding metal clasp, so users can choose a quick clasp or a more secure gum seal depending on their needs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the paper thick enough for repeated handling?\u003c\/strong\u003e\u003cbr\u003eThe envelopes are smooth 28 lb paper; many find the finish and opacity good for presentation, but some report the stock feels thin for heavy repeated handling.\u003c\/p\u003e","brand":"JAM Paper","offers":[{"title":"Default Title","offer_id":48250527219931,"sku":"B072HHM4W4","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51HbP9RfCSL._AC_SL1000.jpg?v=1776268081","url":"https:\/\/gearmusthave.com\/products\/10-x-13-open-end-catalog-envelopes-with-clasp-closure-smooth-black","provider":"GearMustHave","version":"1.0","type":"link"}