A Cell-Cup is a must for commuters with cell phones. The Cell-Cup easily fits into the cup holder providing a secure location for your cell phone, note pad and pens or pencils. All of this in one handy location. It now holds popular phones such as iPhone, Blackberry and other large smart phones. Also holds your MP3 or iPod. Slots are 1-1/2 inches to 2-1/2 inches deep. The phone compartment even has an opening in the base for connecting phone and iPod charger cords.