Accurate, detailed measurements are listed in product pictures. The patented design secures large, top-heavy beverages, so this IS a big cup holder. Braking and potholes have met their match! (Due to the possibility of sloshing, be cautious with hot liquids in The LEDGE). | NEW! We’ve added a protective felt strip alongside the window insert to cushion between the cup holder and glass! This improves the ‘glide’ while rolling the window up/down as well as protecting the window tint. | Designed to fit snugly between the window glass and rubber seal of most vehicles, however some door panels may be too thick. Please contact us with any questions! | How is The LEDGE different and better than the others? It is a DURABLE, one-piece plastic design. It has a 2 1/2" x 4 1/8" window ‘ledge’ that prevents tipping, a 3” deep curved window insert that prevents popping out and a 5” deep cup area that secures tall, large and heavy beverages while driving/riding. (The cup area is 3.5" at the bottom and 4 1/8" at the top and 5" tall). | MADE IN TEXAS, USA and family operated!! Installation may take more effort than expected and videos are available on this listing, on our Facebook page and website. Please contact us for assistance!