Universal, adjustable cup holder expander that keeps drinks and essentials secure Key benefits Secure fit in most standard round car cup holders: expandable base adjusts to fit 66–100 mm (2.6–3.9 in) cup holder diameters. Twist the and bottom in opposite directions to lock it firmly in place. Holds large bottles and handled mugs: extrawide opening and Ushaped side cutout accommodate oversized tumblers, big water bottles, and mugs with handles so you don't have to wedge items in or risk spills. Keeps phone and small items within reach: builtin slim slot holds a smartphone or flat items such as cards, keys, or coins to reduce clutter on the console. Stable, quiet rides: nonslip base pad and rubber grips secure the expander and the drink, minimizing movement, rattle, and spills even on bumpy roads. How it solves common problems No more wobbling or tipping drinks: the expandable locking base and rubber grips create a stable foundation for beverages of varying sizes. Fits more than standard cups: the extrawide body and Ushaped side opening let you use travel mugs and bottles that otherwise won't fit in factory cup holders. Reduces console clutter: the integrated slim slot provides a dedicated place for your phone and flat items so they don't slide around or get lost under seats. Features and performance Compatibility: fits most standard round cup holders with a base diameter of 66–100 mm. Secure locking: twisttoexpand design locks the unit in place without tools. Versatility: roomy holder with a Ushaped side opening for mugs with handles and larger drinkware. Organization: slim slot sized for smartphones and flat everyday items. Stability: nonslip base pad and secure rubber grips for reduced noise and spill prevention. Practical use scenarios Daily commute: keep your travel mug upright and your phone visible and accessible while navigating city traffic. Long road trips: hold a large water bottle or oversized tumbler securely for hours of driving without tipping or rattling. Rideshare, family, or work vehicles: provide stable space for passengers' drinks and a place to store phones, cards, or keys so the center console stays tidy. Simple to install and remove No tools required: twist the and bottom in opposite directions to expand and lock; twist back to collapse and remove. What to expect A stable, adaptable cup holder solution that fits a wide range of drinkware and provides quickaccess storage for slim items. Designed to reduce spills, noise, and clutter in most standard round car cup holders (66–100 mm).