Storage box is strong, dependable, portable and stackable. Multilayered corrugated construction offers 85 percent more stacking strength than basic letter-size/legal-size boxes. Easy FastFold One Step Setup saves assembly time and features reinforced hand holes, so carrying and stacking is comfortable and easy. The 35 percent deeper liftoff lid locks into place for high-security storage you can trust. Box is built for heavy daily usage and maximum stackability. Ideal for stacking without shelving. Storage box contains 65 percent recycled material with 50 percent post-consumer material.