These storage bins are great organizers. They're made of strong plastic and are very sturdy. I got the 12-pack in 11 x 5 x 5 inches with red and blue colors, just the right size for my needs. I use them to organize and store small hand tools. The included label paper is a great addition for easy identification. No more searching for parts; I can just grab and go. The stackable design is another highlight. The bins neatly stack atop one another, saving storage space. Overall, I'm happy with this product.