Vehicle-Mounted Drink Cup Holder Multi-purpose Adjustable Hanger Black For Car Truck SUV Size: 75mm x 79mm x 141mm/3.0x3.1x5.5in This device is holder for drinkable water ,coffee,beverage bottoles in the car. It can be installed on the car door, window and the back of the chair with a hook. Easy to installation and use. Adjustable, the hanger can be pull out for extended length