Black Cardboard Shipping Box Mailers 12 x 8 x 3 Inch Corrugated Packaging Storage Boxes 15 Pack (Inside Size: 11.3 x 7.8 x 2.9)

Sturdy box. Keeps it's form and doesn't unfold like so many.

I haven't used it to mail a book yet, but it appears to be able to handle it.

These boxes were a great fit for what I needed. They're quick to fold together and are a nice, sturdy weight.

A little smaller than expected but great box. I will reorder

Very professional looking and sturdy. Easy to assemble.

I use these boxes to ship out my wigs & products to my customers & they never fail to protect the items inside AND be stylish! Perfect black colour & great sizes. This is a must buy!

Boxes close well and do not pop open. I was hesitant to buy because some reviews said the dye rubbed off on their hands. The dye did not rub off for me. Will order again!

As described. Good quality. Arrived on time.

I ordered these boxes and was actually happy they were black and not a dark brown. They are sturdy and fit my needs perfectly and that's why I was fair giving 2 stars.However, the black dye itself they used for the boxes EASILY rubs on to your hands, and everything they touch. This for me was a big NO as I was using these boxes for my small business. I had customer complaints about the boxes so I'm returning whats left for a refund because I can not have my customers hands and such and my products getting full of black dye.

The media could not be loaded.  Defective products. Cardboard box is not secure. The side flaps keep popping out. I tried another box and same thing happened. I can’t find a customer service email so I will be putting one star until this is sorted out. I do not recommend purchasing here as there are no quality control for their products.