Saco de envio opaco castanho MAILMEDIA B4 130 g/m² autocolante (pack de 25) 51603

This B4 mailing bag from MAILMEDIA stands out with its 130 g/m² paper weight—heavier than many standard envelopes, giving it extra durability for shipping documents and small goods. The brown opaque paper keeps contents private, and the self-adhesive flap ensures a quick, secure closure without extra tape.

Highlights

• B4 format (353 x 250 mm external) fits A4 documents flat or folded
• 130 g/m² paper for tear-resistant, sturdy mailing
• Self-adhesive flap with outside seams for reliable sealing
• Opaque brown paper protects confidentiality
• Pack of 25 envelopes

In daily use

Ideal for office shipping, e-commerce orders, or document storage. The straight flap opens wide for easy insertion, and the adhesive holds firmly in transit. Outside seams prevent snagging, and the paper is FSC certified for responsible sourcing.

Full specifications

• Product type: Mailing bag / envelope
• Envelope format: B4
• External dimensions (L x W): 353 x 250 mm
• Internal dimensions (L x W): 350 x 245 mm
• Colour: Brown
• Material: Paper
• Paper weight: 130 g/m²
• Closure type: Self-adhesive flap
• Window: No window
• Opacity: Opaque
• Recyclable: Yes
• FSC certified: Yes
• Application: Shipping, mailing, document storage, office use
• Pack quantity: 25 envelopes
• Flap type: Straight flap
• Seam type: Outside seams
• Tear resistance: Good

Final note

A dependable, eco-conscious choice for everyday mailing needs—strong, private, and easy to use.