Amazon Basics Car Cup Holder Expander Adjustable Base, Secure Fit for Large Bottles 3.4-3.8 inch, Compatible with Yeti, Hydro Flask, Nalgene, 32-40 oz Bottles, Anti-Spill Design, Black

• Designed to securely hold bottles and mugs between 3.4–3.8 inches in diameter, this adjustable car cup holder fits popular brands including Yeti Ramblers (20, 26, and 30 oz), Hydro Flasks (32 and 40 oz), and Nalgenes (30, 32, 38, and 48 oz). Note: Not compatible with Yeti Rambler 14 oz mugs.

• The expandable base fits most standard vehicle cup holders (2.6–3.9 inches inner diameter) and locks firmly in place for stability on rough roads.Please do not over-tighten the base during installation to avoid damaging your car’s cup holder

• This model is not recommended for certain vehicle models with non-standard cup holder shapes, such as 2019–2023 Toyota RAV4, 2009–2018 Subaru Forester, and 2020–2024 Subaru Outback. Does not fit extra-wide, irregular, or enclosed cup holders.

• A tapered lower section and soft rubber grips ensure a snug fit and prevent wobbling, keeping your drink steady even on sharp turns or bumpy terrain.

• Crafted from heavy-duty ABS plastic with a scratch-resistant matte finish. Quick, tool-free setup—just insert, twist, and lock.For best results, measure your cup holder before purchase to confirm compatibility.