I have the Samsung Note 4 (Large Cell Phone) and I noticed that when my wife rode with me I had nowhere to set my phone. I don't like leaving my phone in my pocket while I drive because it's so big and tight in my pocket. I don't use my phone while I drive, so I just needed a decent place to set it. I bought this rubber anti skid mat on eBay for $3 and put it on top of the steering column. It fits great and it doesn't slide at all. I put my phone on it and did a few abrasive maneuvers and it doesn't move. It's been great for me and I thought I would share.