100 Pack Rigid Mailers 6x8-450 GSM Sturdy Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints

There are a lot of "rigid" mailers out there but these are very thick and very sturdy. If you are mailing cards or other paper products, these are going to give you the best chance of no bending from the mail people. I have also ordered the cheaper ones but they are flimsy and require you to add a cardboard insert anyway so it ends up coming out to the same price as these sturdier ones. These also look more professional, if you are using for business.

my favorite rigid mailers, great quality and super reasonably priced. i've purchased this several times now over many other brands and these are just the right amount of thickness/weight (not too flimsy, but not so heavyweight that it throws your oz over the threshold and sturdy enough to keep your flat prints etc intact)some reviews mention the adhesive which to be fair does require some hard pressing. but if you're using 4x6 labels you can just attach them to the opening side and press them over the seal for security--and voila! no extra tape needed.

These mailers are perfect for shipping my Amazon Handmade Greeting Cards. The 6 by 8 inches is perfect for my 5x7 cards. There is just enough room for the cards and a plastic protective sleeve. They are as sturdy as the mailers used by a well known printing company. They shouldn't bend in transport. I shopped around a lot and you can't beat these for quality and price. I highly recommend these mailers.

I use these for my Etsy shop. I thought the value/cost was great and I love the Kraft look of them. They seal and stay sealed well. Perfect size for up to 5x7 prints, cards or photos. They have good thickness and I don’t have to add extra backing boards, the mailer is enough alone. I’ve not had a single order damaged so far. Would recommend and purchase again.

OMG where have you been all my life with the price and quality. I have been wasting money on mailers but not anymore these are perfect for my handmade card business and are very well made!

These are sturdy and the seal works well. It protects what I’m shipping.I use these specifically to send sports cards using eBay’s standard envelope option and have had no issues. I always select the 3 oz option and haven’t had any returned as non machineable.I hear it does depend on your post office, so you may want to check with your local post office, first. I leave mine for my postman to pickup or use the drive up and drop off option and haven’t had any returned or any issues so far.

These are high quality, heavy mailers. I've had no problem with the adhesive and do not use additional tape. They will not bend and protect whatever you are mailing. They are nonmachinable so it will cost an additional .30 to mail them.

works exactly as expected. Ive shipped a few stickers in these and had no issues at all will purchase again

I am beyond pleased with these! I wish I had found them sooner.