Anybody know how/where to get these Priority Mail poly mailers? There are some items that are just a bit too big for the Tyvek bags and these (or a slightly smaller version)
100 X Grey Mailing Bags Poly Mailers Postal Bags Sacks 34x42 " / 850x1050 MM
Diamond Packaging 100 Mixed Grey Plastic Mailing Mail Post Postage Bags : Amazon.co.uk: Stationery & Office Supplies
White Postal Mail Bags, For Packaging, Capacity: Coustomize at Rs 15/piece in Delhi
Grey Mailing Parcel, Courier Postal Postage Bags Plastic Post Poly Self Seal Adhesive Strip 10 mm Wide, Mail in All Size by Arpan (22 x 30'' - Pack of 50) : Amazon.co.uk:
Post Office Style Mail Bags (In-Stock) - A. Rifkin Co.
Grey Mailing Bags 17x24 | Heavy Duty Postal Bags 17 x 24"
Things Your Post Office Can Do Besides Sending Mail
Waterproof Plastic Bag Parcel/Post Office Mail Bag For Post | Professional Custom Poly Mailer Manufacturer