Black Sliver Clip-on Car Truck A/C Mount Cup Holder Drink Water Coffee Bottle Can Size(approx.): L 4" x W 3 1/4" H 2 3/8" (10.2cm x 7.9cm x 6cm) Holds drinks up to 2 3/4 inch in diameter Ideal for most soft drink bottles and cans Attaches to the existing air conditioner vent Keeps the drink warm or cool with air conditioner airflow