Product Features:  It can be placed on the back of the 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(76cm) in diameter Product Specifications:  Material: ABS  Color: Black Package size: 15 x 14 x 8cm/5.9 x 5.51 x 3.14inches Per Piece  Weight: 25g/0.88oz per Piece  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:  Due to the different monitor and light effect, the actual color of the item might be slightly distinct from the color showed on the pictures.  Please allow 1-3cm measuring deviation due to manual measurement.  Package Includes:  2pcs x Black Auto Car Cup Can Bottle Holders