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Stack of 50 black #10 envelopes with self-seal flaps

Mulbozy SWB-11 Black #10 Self-Seal Envelopes 50 Pack

SKU CH-BC7N-4MR4D MPN SWB-11

Pack of 50 black #10 self-seal envelopes measuring 9.5 by 4.12 inches with windowless design for secure mailing

  • ColorBlack
  • Sizes/Dimensions9.5 in x 4.12 in x 0.1 in
  • Quantity50
  • Self-seal strip closes fast without moisture
  • Windowless face allows full-surface printing or handwriting
  • Sturdy paper resists tearing and fading in daily use
  • Standard #10 size fits checks, invoices and letters
  • Pack of 50 covers routine mailing needs

Self-seal #10 envelope pack

Mulbozy SWB-11 envelopes come in a 50-count box sized at 9.5 by 4.12 inches. Each piece uses a self-sealing glue strip under a peel-off liner so no moisture is required. The black, windowless stock is rated for standard business correspondence and event mailings.

Suits high-volume mailers; not for window needs

Offices sending checks, invoices or statements benefit from the quick peel-and-seal action and the opaque face that hides contents. Buyers who need a transparent address window or a different paper colour should look at alternative styles.

Self-sealing closure method

The single specification that decides fit is the peel-and-seal flap: tear the protective strip, press, and the envelope is sealed without moistening. If your workflow demands traditional gummed flaps or a window aperture, this pack will not match that requirement.

Highlights

  • Self-seal strip closes fast without moisture
  • Windowless face allows full-surface printing or handwriting
  • Sturdy paper resists tearing and fading in daily use
  • Standard #10 size fits checks, invoices and letters
  • Pack of 50 covers routine mailing needs

Specifications

BrandMulbozy
ModelSWB-11
ColorBlack
Sizes/Dimensions9.5 in x 4.12 in x 0.1 in
Quantity50

Questions about this item

What comes in the Mulbozy SWB-11 pack and do I need to buy any extra sealing supplies?

The pack contains 50 black #10 envelopes measuring 9.5 by 4.12 inches. Each envelope has a self-sealing glue strip under a tear-off anti-stick strip, so no separate tape, moistener or adhesive is required.

Should I choose the 50-count SWB-11 or a larger quantity for regular office mailing?

The SWB-11 is the 50-piece pack. If your volume is higher, the supplier also lists a 200-piece version of the same black #10 self-seal envelope, which reduces reorder frequency.

How does the 9.5 by 4.12 inch size work with standard US letter paper folded for business mail?

The #10 dimensions (9.5 x 4.12 in) are the standard US business envelope size. A letter sheet folded into thirds fits neatly inside, making the envelopes suitable for checks, invoices, statements and general correspondence.

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