Brown cardboard envelopes with locking flaps

These brown, carton envelopes feature tamper evident locking flaps, which once inserted cannot be opened without causing considerable damage to the cardboard envelope. For extra security, double seal the envelopes with one of our packaging tapes. Each mailer is manufactured from 350 gsm micro-flute corrugated board which helps maintain the structure and rigidity of the envelope.

This board keeps your products flat and free from creasing during posting and will protect from day to day wear and tear. Reinforced corners also provide extra protection for your products.

The expandable edges allow the cardboard envelope to increase in height by up to 40 mm, meaning that you can use these cardboard envelopes to post a variety of different products including, DVDs, CDs, books, catalogues and calendars.

If you want to discuss your packaging requirements with one of our experts call 0800 542 44 28 today, and get next day delivery.

Sold in packs.

Quantity Available in packs of 50 or 100 depending on the size of the envelope. Please see our discounts for 3 or more packs if you want to order in bulk.

Size and shape options These carton envelopes with locking flaps start at 230x330mm and go up to 450x700mm (internal opening x height).

Materials RAJA’s carton envelopes are made from 350gsm micro-flute corrugated board.

Environmental information 100% recyclable.

Delivery information Delivered in packs of 50 or 100.