High quality 50 micron purple mailing bags made from recyclable polythene. They come with a self adhesive peel & seal strip which makes it extremely quick and easy to pack and post items. They are waterproof to ensure items arrive in excellent condition.
 
They are available  in 10" x 14" (250x355mm)
 
These are available in quantities as low as 25 mailing bags right up to 1000 mailing bags.