Since durability is a key selling point for the vast majority of products, it makes sense to emphasise it in marketing materials.
To put it another way, your product will be around for a very long time.
Make that point crystal clear, and consumers who care about longevity will pay close attention to what you have to offer.
Examples:“The longest lasting tools, guaranteed.” A timepiece worthy of being given to one’s grandchild. As in, “You can’t break this with a hammer.”