Brand new and high quality Features: It can be placed on the back of the for seat of the car, the door side for the water cup or drink;when the car is in the driving process ,heavy drinks will not be overflowed. It can be installed easily by sliding between your door panel and window that is easy to take and reach It fits regular sized cans,water bottle and juice boxes up to 3 inches in diameter Specification: Material Type:ABS Color: Black Item Length:13cm/5.12inch Item Diameter:6.5cm/2.56inch Item Height:11.5cm/4.53inch Usage Instruction: After installing in the back of the chair, the headrest should be removed and installed on the side of the door Insert the plug into the window slot and not affect the window Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 Drink Holder(without bottle opener)