2-in-1 Expandable Car Cup Holder Adapter

This car cup holder expander is designed to adapt a vehicle’s existing cup holder to hold larger bottles and mugs. The set includes a main cup holder expander and an additional detachable cup holder, and each cup holder can be installed with the base individually, giving you flexibility in how you configure the adapter. The expander is intended to fit bottles and mugs between approximately 2.2 and 4.2 inches wide, including many 10–46 oz water bottles and 18–40 oz tumblers. The base is adjustable from about 2.6 to 4 inches to fit different vehicle cup holder openings, particularly cylindrical cup holders. The adapter is made from quality ABS plastic for strength and stability, and the rubber coaster and internal pieces help hold the bottle securely and reduce tilting or splashing while driving. Installation is straightforward: insert the base into the car cup slot, twist the cup holder until it is tight, and then attach the second cup holder by inserting it into the connection. This product is suitable for many cars, SUVs, and trucks, and it is a practical accessory for drivers who use large water bottles, travel mugs, or insulated cups and need a more secure fit in the vehicle’s cup holder.