Keep drinks and essentials secure and organized in virtually any standard round car cup holder. Key benefits Prevents spills and noise: expandable base plus rubber grips and a nonslip base pad hold bottles and mugs steady on bumpy roads. Fits more than standard cups: wide, Ushaped opening and expandable base let you use oversized tumblers, handled mugs, and large water bottles without forcing them into a tight cup holder. Reduces clutter and keeps items accessible: builtin slim slot stores a smartphone and other flat items (cards, keys, coins) within easy reach. How it works Universal adjustable base: twist the and bottom in opposite directions to expand and lock the base securely into most round cup holders (fits 66–100 mm cup holder base). Extrawide, Ushaped side opening: accommodates handled mugs and tumblers with awkward shapes so you can place and remove drinks quickly. 2in1 design: main cup area plus a slim storage slot for phones and flat items keeps your center console tidy. Stable, rattle construction: rubber grips and a nonslip pad combine with a solid frame to minimize movement and noise while driving. Compatibility and size Designed for most standard round car cup holders with a base diameter range of 66–100 mm. Holds extra large tumblers, big water bottles, and handled mugs thanks to the Ushaped side opening. Slim storage slot fits most smartphones and flat accessories. Practical uses Daily commute: keep your travel mug and phone secure and accessible while getting in and out of city traffic. Road trips and long drives: hold large water bottles and reduce rattling on rough roads to avoid spills and distractions. Rideshare or family use: make room for different drink sizes and keep small items like parking cards or loose change organized for multiple passengers. What you'll notice Easier setin and removal of handled and oversized drinkware. Fewer spills, less noise, and a neater console area. Quick access to your phone and small essentials without searching through bags or glove compartments.