Review on Juvale Corrugated Cardboard 📦 Sheets: Reliable Packaging & Shipping Supplies by Billy Berry

I have ordered custom corrugated in the past and the quality of this product far exceeds even that. They're thin, yet incredibly strong and difficult to bend! And FYI I would NOT recommend that people put them in envelopes or flats as these boxes are so hard that the postal services cannot process your letter. Since letters and planes must have a certain percentage of feed/bend ability, your letters could very well be delivered to someone who will be bent and worst case destroyed. **Packages/packages/bubble mail is ok though**