200 Pack 5x7 Corrugated Cardboard Sheets for Mailers, Flat Packaging Inserts for Shipping, Mailing, Arts and Crafts Supplies, Dividers, DIY Projects, 2mm Thickness

Nice and sturdy, but really light!

These are very nice for shipping postcards and such for ebay purchases! Would also be great behind photos. They are very supportive....do not bend easily. Much better than another brand I bought in the past. Will be buying again!

I really love these for adding to items to mail to help keep them flat. However, the last batch I ordered is very warped so its difficult to keep items completely flat.

True to size and great for packaging items or putting backing in a frame

A little pricy but seem to be of good quality. They are pretty thin but seem surprisingly stiff considering their thickness. They are also quite smooth. I purchased these for use as stiffeners in padded mailing bags for use in shipping small items. They might be a little smaller than ideal for use in a 6x9 inch mailer but I think theyll probably work out for that OK. These would probably work nicely for a lot of arts and crafts projects too. They measure exactly 5x7 inches and 0.079 to 0.080 inches thick. I hope this info is helpful.

Perfect to ship inside my envelopes with my stickers to keep them from bending.

Packaging was hilarious a clear bag of cardboard showed up at my doorstep lol. Using these for my small business to ship prints. They are super sturdy! Great alternative to chipboard.

Great price light weight but very strong. These inserts are thing but incredibly strong, They also do NOT come bound by strapping which always causes damage. Will buy from again!

I used these for my business and mail stickers in between. Since I started using these, I havent had any issues with mail bending. These are thicker than I thought!

This product is horrible not useful for anything