How to Explain coffee maker sliding base to Your Grandparents

http://b3.zcubes.com/v.aspx?mid=1537009&title=how-to-maximize-your-countertop-in-a-few-simple-steps

I put this under my coffee maker. It is easy to use and very convient. The only thing I would change is that it slides around a bit because I have granite countertops. Not a problem for me though. I will be getting