Garage21 2-in-1 Cup Holder with Adjustable Base Between your water bottle and your coffee, tea, sports drink, or another passenger's beverage, you need a second vehicle cup holder within reach. This clever design provides it -- and easily adjusts to fit securely around your beverage. From Garage21. Upper expandable cup holder accommodates most cups/bottles 2.9" Diam to 5.9" Diam Bottom cup holder accommodates most cups/bottles less than 2.7" Diam Base adjusts from 2.56" Diam to 3.7" Diam to fit most standard cup holders Upper expandable cup holder accommodates most cups/bottles 2.9" Diam to 5.9" Diam Bottom cup holder accommodates most cups/bottles less than 2.7" Diam Base adjusts from 2.56" Diam to 3.7" Diam to fit most standard cup holders Imported