HoooooooRhaaaaaaaa! You are 100% correct O Mundo! I use the "Sponge on my car" And I will be using the marine sponge for my Jet Ski's!!! I have been giving out the car sponge to some friends and "ALL" are completely happy with the sponge and how's it performs! They will purchase this sponge, is what they tell me... Can't wait to tell them about the marine sponge system! Yeap I know it's hear say...No link to prove it...Sorry!