24 x 5 x 24 Inches Picture & Mirror Moving Boxes - 25 Pack Heavy Duty Shipping Boxes for Artwork, Frames, Glass & Fragile Items - Secure Packaging for Home Moving & Storage (BS240524FOL)

I ship paintings frequently through an online store, and have been looking for the perfect box that's the right size to save on shipping, but lightweight and most of all, easy on the wallet. These boxes are the winner! They work great, and are just the right width for a small item like a canvas. My only complaint is that, for shipping, the actual measurement ends up being 24 x 25 x 5 on the outside, which does make quite a bit of difference in shipping costs. Great product, though!