Quality Park 9 x 12 Clasp Envelopes, Brown Kraft 12.7 kg — 100-Count Box with Deeply Gummed Flaps & Metal Clasps

Quality Park 9 x 12 clasp envelopes are heavyweight 28 lb brown kraft envelopes with reinforced metal clasps and deeply gummed flaps for secure storage, filing, or mailing of flat documents without folding.

These 9 x 12 envelopes combine rugged kraft paper with a reusable double-prong clasp and strong, moisture-activated adhesive so you can protect contracts, photos, catalogs or archival paperwork either for filing or transit. The 28 lb stock resists tearing and rough handling, while the reinforced eyelets and double prong offer repeated opening and reclosing for ongoing access. Packed in a convenient 100-count box, they balance durability and value for small businesses, home offices, schools, and creative projects.

How do these envelopes keep documents flat and protected?

The 9 x 12 format is deliberately sized to hold standard documents and lay-flat materials without folding, reducing creases and preserving presentation. Heavyweight 28 lb kraft adds stiffness and puncture resistance during storage or shipping. The gummed flap seals permanently when moistened, protecting contents from slips or exposure.

• Full 9 x 12 interior prevents folding of letter-size sheets and 8x10 photos
• 28 lb kraft reduces bending and tearing under handling
• Deeply gummed flap provides a secure, tamper-evident seal when moistened

Can I reuse the envelopes after opening, and how durable are the closures?

Yes — these envelopes are designed for multiple uses. The double-prong metal clasp with reinforced eyelets lets you fasten documents inside, then open and reclasp without compromising the envelope body. This makes them suitable for active files and documents that require frequent access.

• Double prong clasp supports repeated opening and reclosing
• Reinforced metal eyelets prevent tearing at closure points
• Durable kraft stock withstands routine filing and handling

Are these envelopes suitable for mailing, and what should I expect when sending documents?

These clasp envelopes perform well for mailing flat items that benefit from extra protection, such as certificates, photos, and registration packets. The heavyweight stock and gummed flap help shield contents, but for international or tracked shipments you may want additional protection like a padded sleeve or rigid mailer. For standard domestic mailing, their sturdiness and secure seal make them a practical choice.

• Sturdy kraft material reduces damage risks in transit
• Gummed flap seals securely when moistened for mailing
• Consider extra padding or a rigid outer mailer for long-distance shipments

What office tasks are these envelopes best for?

They’re versatile for organization, long-term storage, and distribution of flat paperwork. Use them for client files, contract storage, photo archiving, workshop materials, student portfolios, or any project that benefits from a flat, reclosable container. The box of 100 helps departments and households maintain a stocked supply.

• Ideal for filing contracts, invoices, and archival documents
• Great for photos, certificates, and lay-flat marketing materials
• 100-count box supplies consistent inventory for offices or classrooms

Who is this for: These Quality Park 9 x 12 clasp envelopes suit small businesses, administrative teams, photographers, schools, and home offices that need a dependable, economical solution for flat-document storage and transit. If you want reclosable security, heavy-duty paper stock, and a bulk pack to keep supplies on hand, this 100-pack delivers a pragmatic balance of protection and value.