What’s up Endural? You guys have been touting returnable/reusable cases for close to 30 years. Yes, but some products don’t come back. Take crate motors as an example. The engine buyer needs a motor for his or her hot rod. There is no motor to return. Endural has a sturdy case made of plastic where it’s needed and corrugated where it isn’t. It’s a great way to save shipping costs along with protecting a very special and valuable engine.