Review on 🚗 Adjustable Car Cup Holder Expander Adapter Organizer with Unique 2 in 1 Design for Beverage Can Coffee Bottles Stand, Universal Detachable Double Water Cup Holder featuring Elastic Open-Close Cup Mouth by Eddie Simpkins

Purchased to add a cup holder to our RV to keep two drinks (coffee and water) handy on long trips. However, the cup holders hold nothing other than what is pictured - a 1/2 liter plastic water bottle and maybe a flimsy glass or small paper cup. Neither side fits our standard size travel coffee mugs, let alone large ones. Also, it's made of fairly thin plastic. Even if you find something that fits the holders, I would worry that it won't stay. as the plastic top breaks or falls apart.