If you have ever had your cell phone under your seat ringing, then you need this. I was given a sample at a conference and was hooked. This simple mat is one of the best things for drivers and cell phones and more. Just place it on the flat part of your dash, put you phone on it and you can turn all the corners you want the phone stays put. It is also great for coins for toll roads. Just lay out you coins and you are ready. I bought one for each of my employees.