Roadster Standard Cupholder Adapter

Cupholder Adapter: Secure your bottles and cups while driving Trucks, Cars, RVs, Boats, and other Vehicles 
Expandable Base: Adjustable Size, Fits Large Mugs, Bottles, and Cups up to 3.6″ with side opening for Handled Mugs
Compatibility: Compatible with Simple Modern 32oz Summit, 40oz Summit, 12oz Voyager Coffee Mug with Handle, and more!

We are proud to stand behind all our products. Every Simple Modern product is made in accordance with high quality and safety standards. And we take our product performance seriously, which is why we offer a limited lifetime warranty covering any manufacturer’s defects.