Check the listing for details. Expandable Car Cup Holder with Adjustable Base, Fit Big Bottles 3.4 to 3.8 Inch. Condition: New. Listed at 14.99 USD. Expandable Car Cup Holder with Adjustable Base, Fit Big Bottles up to 4 Inch Wide, Compatible with Hydro Flasks 32/40 Ounce With the Cellet Car Cup Holder Expander Adapter, you may safely enjoy your favorite beverages while driving. This Cup Holder Expander fits into your current cup holder and keeps bottles and cups of various sizes secure while in transportation. The holder is suitable for use in automobiles, trucks, and SUVs, as well as recreational vehicles such as golf carts, boats, RVs, motorbikes, and others. The cup expander adapter is a practical, convenient alternative for extended road trips, commuting to work, or simply doing errands.This cup holder expander is made of robust ABS plastic and is designed to keep your bottles/cups in place even in rough driving conditions. Flexible inside rubber grip tabs make it easy to insert and remove bottles and cups for a drink without worrying about splashing or tipping. The adapter is intended for use with beverage containers with a diameter of 3.4-3.8 inches and fits most 32-40 ounce bottles. A slot on the side enables the secure insertion of mugs with handles.The Cellet cup and bottle holder insert expands to a diameter of 2.5 to 3.75 inches, allowing it to easily fit into a range of various car holders and adjust for optimal fit. Simply twist the adapter's top to expand or retract the base for quick installation.Cup holder expander for securing beverage cups and bottles while drivingSuitable for use in automobiles, trucks, SUVs, recreational vehicles like boats and RVs, and moreThe expandable base adapts to fit most car cup holders measuring 2.5-3.75 inchesRugged driving conditions are easily resisted by the durable ABS plastic structureInside, flexible rubber grip tabs allow you to set and retrieve cups and bottles without tipping themCompatible with Yeti Ramblers (20, 26, and 30 ounces), Hydro Flasks (32 and 40 ounces), Nalgenes (30, 32, 38, and 48 ounces), beverage containers 3.4-3.8 inches in diameter, and most 32-40 ounce bottles. Please keep in mind that it will not fit Rambler 14-ounce mugs Here at Cellet Our Customers Satisfaction is Important. Payment Information: - We Accept PayPal - We Accept Credit Card via PayPal Shipping Information: - We provide Same Day FREE SHIPPING domestically within the U.S.A - USPS First Class (3-5 business days) - We reserve the right to charge an additional shipping fee for reship items due to the wrong shipping address provided during checkout. - All orders before 9am Pacific time will ship out on the same day! Monday - Friday - Ships Same Day Today! Refund & Return Policy: - We offer a 30-day return policy on all items purchased by us. - Please contact us within 30 days after receipt of the item for a return. - Do not ship the item back to us without contacting us first.