Car Cup Holder Expander – Fits 3.4–3.8" Large Bottles, Adjustable Base, Black

Finally, a place for your big water bottle. This cup holder expander turns your car's standard cup holder into a sturdy home for large bottles and tumblers, so they stop rolling around on the floor or seat.

Why you'll love it

• Holds large bottles: fits bottles and mugs from 3.4" to 3.8" in diameter, including popular 20–40 oz tumblers and 30–48 oz water bottles
• Adjustable base: expands to fit most standard car cup holders from 2.6" to 3.9" wide and locks firmly in place
• No wobbling: a tapered lower section and soft rubber grips keep your drink steady on sharp turns and rough roads
• Built to last: heavy-duty ABS plastic with a scratch-resistant matte finish
• Tool-free setup: just insert, twist and lock – done in seconds

Compatibility

Fits bottles such as Yeti Rambler 20, 26 and 30 oz, Hydro Flask 32 and 40 oz, and Nalgene 30, 32, 38 and 48 oz. Not compatible with the Yeti Rambler 14 oz mug.

Please check your car first: not recommended for non-standard, extra-wide, irregular or enclosed cup holders, including the 2019–2023 Toyota RAV4, 2009–2018 Subaru Forester and 2020–2024 Subaru Outback. Measure your cup holder before ordering.

Specifications

• Bottle size: 3.4" – 3.8" diameter
• Base fits cup holders: 2.6" – 3.9" inner diameter
• Material: ABS plastic with rubber grips
• Color: Black

Tip: don't over-tighten the base during installation to avoid damaging your car's cup holder.

What's in the box

• 1 × Car cup holder expander