1.Multipacks of Strong Grey Mail Postage Bags (25/50/100/300/500/1000) in sizes ranging from Small to Large. (6x9 9x12 10x14 12x16 14x21 inch) 6x9 9x12 10x14 12x16 14x21 inch) 6x9 9x12 10

2.These are made of an opaque grey 60Mu film with a strong self-adhesive closure that is connected to the envelope lip. This outstanding closing, which seals extremely firmly to keep out wet, debris, and even air, has no effect on your items.

Polythene is a material that is made up of 300 percent polymer.

4.Sealing Technique: Self-Sealing

5.The 60 Micron thick construction resists tearing and ripping, making these incredibly difficult to tamper with and guaranteeing your items arrive in great shape.

6.These plastic postage bags can be utilized with any courier or for airtight goods storage for personal or commercial purposes.

7.High-quality warranty from a renowned UK retailer; we'll be happy to answer any questions or address any concerns you may have about this item!

8.Customize bulk poly mailers with your logo and colors to improve brand recognition. Make your gift more appealing by include eye-catching artwork.

9.Protect your merchandise. Poly envelopes provide an easy peel-and-seal closure. This adhesive does away with the necessity for tedious assembling and bonding. They're also tamper-proof, meaning they can't be opened and closed again.

10.Quality: The polyethylene envelope is constructed of high-quality materials and is durable, tear-resistant, puncture-resistant, and moisture-resistant.

11.Secure: These stylish postal bags include strong adhesives, are safe, opaque, and weatherproof.

http://www.goinpack.com/