This upgraded large car cup holder converter is an auto interior accessory that fits standard vehicle cup slots to expand the inner diameter. It can stably hold oversized tumblers, thermos mugs, large water bottles and beverage cups that original car cup holders cannot accommodate. Made of sturdy wear-resistant plastic, it features an embedded adaptive structure for tight installation without shaking while driving. The matte black minimalist design matches most car interior styles, effectively making full use of the car’s cup storage space and solving the problem of large cups failing to fit factory cup holders.

Large Diameter Expansion Design

Widen the original cup slot to fit oversized tumblers, thermoses and big beverage bottles. 

Stable Non-slip Embedded Structure Snugly fits vehicle built-in cup slots, keeps cups steady without sliding during driving. 

Universal Car Interior Accessory Matte black finish matches most car interiors, simple plug-and-play installation with no tools needed.