Review on 🎁 Hallmark 8-inch Gift Boxes - Pack of 5; Square Kraft - Ideal for Christmas, Holidays, Birthdays, Weddings, Crafts, Fathers Day, Care Packages, and More by Kelsey Brown

This is GREAT! Exactly what I was looking for. They're not super thick, but they're durable. Looks like a cereal box. You probably won't be able to mail them without a decent amount of tape, but as for the gift box, they're big and super easy to put together! I was hoping for that. You just open them up and you can fold them back up when you need to store them. In the photos I have tried to convey their size by hand. They have some flexibility as you expand them, but then they fit well and fit snugly, forming a sharp square. Good quality for the price.