very sturdy

They are nice boxes. Great for organizing money or whatever you want.

It’s hard to find a bulk storage system for modern U.S. currency. With the plastic currency sleeves and the chipboard box system, available through coin Supply Express, you can have it all! Inexpensively, I can organize, catalogue, store and easily retrieve when sold each note I’ve collected. Great way to keep notes until sold!

These chipboard boxes are great quality and fits sleeved currency very well.

These boxes fit perfectly together in my closet. Tight and uniform.