I got one of these suction adapters on a phone mount I bought a some time ago. I can't find it so I decided to make my own. Now that I have a new Centauri Carbon 3D printer, I can start making parts again. This is for those whose dash is not smooth and you can't use the regular suction cup on it. Unfortunately I am finding the new suction cups now working or sticking. The adapter is fine but the cups are just not good. Just add tape to the bottom and stick it where you want to use it.