Amazon Basics Car Cup Holder Expander with Adjustable Base, Securely Holds Large Bottles 3.4 to 3.8 in Diameter, Compatible with Yeti, Hydro Flask, Easy Installation, 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.