Compatible with 65100mm console cup holders: The cup holder expander has an adjustable base to fit car cup holders from 65 to 100 mm, suitable for different vehicles such as motorcycles, boats, trucks, RVs and arts. Compatible with cups and bottles up to 105mm: The large slot with elastic claws accommodates most water bottles, cups, mugs, and tumblers within 105 mm in diameter. Firmly and tightly secured: Nonslip sponge pads and silicone pads on the base and claws protect the cup holder from shifting and shaking, and help prevent tipping and spilling of the water cup. Practical benefits: Provides stable, protected drink support for a wide range of containers, reducing spills and rattling in motion. Use scenarios: Road trips in cars: Keep water bottles or travel mugs within easy reach up to 105 mm, improving convenience and reducing spills. On motorcycles, boats, trucks, and RVs: Secure drinks during movement, with padding to guard against vibration and tipping. Daily commuting or navigation of moving vehicles: Organize and stabilize beverages to prevent leaks and drips. Materials and performance: Base and claws feature nonslip sponge and silicone pads to deliver a stable grip without damaging the cup holder or beverage.