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White side-loading locking mailers, pack of 50

Partners Brand

Partners Brand MAL12112 Side Loading Locking Mailer 12 1/8 x 11 5/8 PK50

SKU CH-AXWY-Q5NGG

Side-loading mailers hold 12 1/8 x 11 5/8 inch documents and lock securely, supplied in a pack of 50

  • Product colorWhite
  • Side-loading design speeds up packing workflow
  • Self-locking closure secures contents without tape
  • 12 1/8 x 11 5/8 dimensions fit standard documents
  • White exterior presents a clean professional look
  • Pack of 50 mailers covers high-volume shipping needs

Product identity

Partners Brand MAL12112 Side Loading Locking Mailer 12 1/8 x 11 5/8 PK50 is a white side-load mailer supplied in a pack of 50. It suits businesses that ship flat items such as documents, catalogues or lightweight goods and need a secure self-sealing closure.

Installation and common issues

The mailers are ready to use; simply insert contents through the side opening and press the locking seal closed. No tools or tape are required. The main risk is overstuffing the envelope, which can prevent the lock from engaging fully and cause the flap to pop open in transit.

Sustained use behaviour

Under repeated daily packing the adhesive retains its tack and the fibre construction resists tearing when handled in bulk. The pack quantity of 50 supports consistent workflow without frequent reordering, and the flat storage profile keeps bench space clear during high-volume periods.

How it compares

Measured against everything we stock in Packing Materials & Shipping Labels, at today’s prices. Recalculated every night.

Price $102.99
Pricier than about 67% of the 3,067 comparable items (median $52.99).

Specifications

Product
Brand namePARTNERS BRAND
Product colorWhite

Questions about this item

How can I confirm the mailers lock securely after loading?

After inserting contents, press the adhesive flap firmly across the full 12 1/8 inch width; the tamper-evident seal shows visible fibres if reopened.

What does the PK50 pack contain and is anything else needed?

The box holds 50 white side-loading mailers measuring 12 1/8 by 11 5/8 inches; no extra sealing tape or inserts are included.

Which capacity should I choose for regular shipping volumes?

The single option is the 50-count pack (MAL12112); order multiple packs if your monthly volume exceeds 50 pieces.

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