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

Nice quality, good price.

These are very sturdy and perfect for packaging fragile items.

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

Perfect thickness for my postcard shipping needs.

Your count was off by 5. I didnt recieve the amount that I paid for. This was for a project. Please count correctly when packing orders. Otherwise great product.

I LOVE this product and will continue to buy these! They fit perfectly in the envelopes I use to ship out my stickers and helps to protect my products. My customers really appreciate them as well! Highly recommended!

This is hands down the best to pack prints. They are thick and sturdy and keep prints safe when shipping out to my customers. I recommend these backing boards. They are true to size and come safely packed.

Needed these for shipping small paper products. Found they fit in the envelopes well and my customers thank me for using quality cardboard to protect the antiques. I will be ordering more.

Definitely helped me with my projects

I bought the 5x7 size and they are a must buy, seriously amazing quality!! I use these to ship paper products for my business and I am SO thankful to have found these after two years of a bad experience with another Amazon seller. For some reason this product is hard to find on Amazon. My photo shows the quality difference side by side. The old ones always arrived wrapped in zip ties which left them badly bent every time. These new ones arrived neatly stacked in a clear bag that kept them perfectly straight. They are very sturdy too. I never leave Amazon reviews but these will make my life so much easier. Will be ordering a lot more today because I never want to run out!