Elevate your beverage storage with this magnetic cup holder, perfectly designed to accommodate 30 and 40 oz Stanley tumblers. This innovative holder features strong magnets that securely attach to metal surfaces like refrigerators, filing cabinets, or gym equipment, keeping your favorite drink within arm's reach while saving valuable counter space. The sturdy construction ensures your tumbler stays firmly in place, while the thoughtful design allows for easy access and removal. Whether you're organizing your workspace, kitchen, or workout area, this magnetic holder offers a practical solution for Stanley tumbler enthusiasts. The versatile mounting options and durable build make it an essential accessory for anyone looking to keep their beverage conveniently positioned throughout the day. Compatible with both 30 oz and 40 oz Stanley tumblers, this holder helps you maintain an organized and clutter-free environment.