<b>Gadjit Cup Keeper Adapter expands 2.5" Car Cup Holders up to 3.25" to hold Regular Mugs, Convenience Store Cups, Water + Soda Bottles with bases up to 3.25" in diameter and up to 8-10" high</b> <br><br>Many car cup holders are only 2.5-3" in Diameter. Cup Keeper Adapter EXPANDS your vehicle’s cup holder so it can hold regular sized mugs, larger convenience store cups, & water and soda bottles with bases up to 3.25” wide and up to 8-10” high. Cup Keeper Fits:: -Hydro Flask 18 oz & 21 oz Standard Mouth Containers -Hydro Flask 20 oz Wide Mouth container -YETI 20oz & 30 Oz tumblers -YETI 12 oz JR -YETI 10 oz, 12 oz & 18 oz Bottles -Naglene 20, 24 oz Bottles IT DOES NOT Fit the larger 32 & 33 OZ bottles <br><br>No installation needed. Simply place in your cup holder and set your mug, cup, or bottle in Cup Keeper. Work in cars, trucks, RVs, golf carts. Portable, too. It goes where you go. Durable, Dishwasher-safe. <br><br>Use with Travel Mugs, Store Coffee Cups, Water Bottles, Store Soda Cups with bases up to 3.25” and up to 8-10” tall. WARNING--Too tall beverage containers may wobble and tip over. <br><br><b><b>Cup Keeper Dimensions</b> <br>Top to Bottom – 6.31” <br>Top Part Dimension – 3.6” Width, 3.25” Height. The Top Part sits above the cup holder. Drink containers sit in the Top Part. <br>Bottom Part Dimension – 2.5” Width, 2.5” Height. The Bottom Part sits into the cup holder. <br><b>WILL THIS FIT MY CURRENT CUP HOLDER?<br>To ensure a good fit – Measure the diameter and depth of your existing cup holder. Product Dimensions: Height from top to bottom – 5.25”. Top Holder Dimension: 3.6” at the top rim, 3.375” at lower rim. Bottom Base Dimension: 2.5” Height, 2.5” Diameter.</b>