When we purchased our boat, the salesman gave us a basket with several Shurhold products as when picked up our boat. That was the first time I've heard of it. I will tell you that I am so glad that we received these products. They, not only, clean and shine like no other, but they don't have a heavy scent like many other products. It is actually a nice, clean scent that you would not think would come from a "cleaning" product. WONDERFUL products.