【2023 Upgraded Extendable Cup Holder】Bring convenience and pleasure, enjoy fast food or coffee in your car. Does not affect adjacent cup holders, shifters, center console cover, and car dashboard. All bracket supports for the cup holder are in the same plane, so the cup won't shake while the car is moving. 【Increase Your Cup Holder's Capacity】Adjustable Diameter from 2.56-5.51 inches suitable for most bottles, drinks, coffee mugs, instant noodles, snacks, and fast food cups. Matching with Yeti 14/24/36/46oz Ramblers, Hydro Flask, Nalgene, and more. This cup holder expander will hold them firmly, with no risk of shaking or tipping. 【Expandable Base For 2.5"-3.9" Car Cup Holder】The car cup holder expander fits most cylindrical car cup holders. The adjustable base has an expandable diameter from 2.5" - 3.9" to keep the base firmly in place. It also compatible with different vehicles such as golf carts, trucks, RVs, and boats. 【Easy to Use and Install】1. Put the base in the car cup holder, and tighten the base knob to make sure the base is firm. 2. Insert the cup holder into the upper part of the base, making sure it is fully inserted. Turn the knob to adjust the size you need for the cup holder expander. 3. You can also separate them, just pull them out. 【Excellent After-Sales Service】We value our customer's shopping experience, if for any reason you aren’t satisfied with this Car Cup Holder Expander, please let us know and we will give you a satisfactory solution within 24 hours. Order today with peace of mind! Cup Holder Expander for Car with Adjustable Holder & Base, Compatible with 2.5-5.1in Large Bottles, Drinks, Mugs, Fast Food Cups, Universal Fits Most Car Cup Holder at 2.5-3.94in, Car Accessories for Men and Women