Roadster Standard Cupholder Adapter

Cupholder?Adapter: Fits in Trucks, Cars, RVs, Boats, and other Vehicles
Expandable Base:?Adjustable Size, Fits Large Mugs, Bottles, and Cups up to 3.6″??
?Compatibility:??Compatible with Simple Modern 32oz Summit, 40oz Summit, 12oz Voyager Coffee Mug with Handle, and more!