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Free on every order — no minimum. Ships within 1 business day.
Delivery is free on every order, anywhere in the UK — no minimum spend. Orders are packed and ready to ship within 1 business day and typically arrive within 2–4 business days, tracked door to door.
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Returns are free for 30 days from delivery. Email findsworth.uk@gmail.com with your order number and we send a prepaid label — you never pay return postage. Refunds are issued within 3–5 business days of the return arriving.
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Quality Park 10" x 13" clasp envelopes are heavy-duty 32 lb brown kraft mailers with a reusable metal clasp and moisture-activated gummed flap for secure mailing and flat storage of oversized documents.
These 10 x 13 clasp envelopes are built to handle repeated opening and resealing while protecting letter-size papers, certificates and other flat documents without folding. Constructed from sturdy 32 lb brown kraft, the envelopes combine opacity and tear resistance for everyday filing, interoffice transfers or economical mailings. Each box contains 100 envelopes so you have a reliable supply for organizing, shipping or storing important paperwork.
They’re designed for frequent handling: a double-prong metal clasp secures the flap for repeatable access, and reinforced eyelets keep the clasp aligned even after many uses. The heavyweight kraft resists rips and punctures during typical office or mail-route handling.
The brown kraft is dense enough to obscure contents, and the deep, moisture-activated gummed flap creates a strong, permanent seal when moistened. Their 10" x 13" dimensions let you store letter-size documents flat, avoiding folds and keeping certificates or legal papers in better condition.
Yes — the envelopes serve double duty. They withstand interoffice transport and routine postal handling, making them useful as cost-effective mailers for non-fragile documents, while still working well as long-term storage folders in file cabinets.
Use them as visible, tactile folders to sort projects, taxes, schoolwork or client files. The kraft color offers a simple, low-cost way to categorize paperwork, and the clasp allows quick access without compromising the option to permanently seal with the gummed flap when needed.
Who is this for? Small businesses, home offices, schools and anyone who regularly handles oversized or important papers will find these Quality Park 10" x 13" clasp envelopes practical. They suit users who need a balance of reusability and long-term security: clerical staff who shuttle documents between desks, educators organizing student materials, homeowners keeping tax records flat, or mailrooms sending non-fragile documents. If you want a no-nonsense, economical envelope that protects contents, offers repeated access via a metal clasp and can be sealed permanently with a gummed flap, this 100-count box delivers dependable performance.
Q: Are these envelopes reusable after opening?
A: Yes. The metal double-prong clasp allows repeated opening and reclosing; the gummed flap can be moistened for a permanent seal when needed.
Q: Can I mail documents in these envelopes?
A: Yes. The 32 lb kraft resists handling and the gummed flap seals securely, suitable for mailing non-fragile documents.
Check the selected model, package contents and stated compatibility on this product page. Prices are shown in GBP with VAT included where applicable.
Questions about this product? Email findsworth.uk@gmail.com and a real person replies within one business day.
Free UK delivery on every order — packed and ready to ship within 1 business day, arriving in 2–4 business days with tracking.
Free 30-day returns: email findsworth.uk@gmail.com for a prepaid label. Refunds land within 3–5 business days of the return arriving. Faulty or damaged items are refunded or replaced immediately.
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