Features: Supports Large Containers: This heavy-duty magnetic cup holder accommodates 46oz and 64oz bottles with 4.25in and 5.08in diameters, offering a stable mounting solution for bigger drink containers and mugs. Powerful Pair of Magnets with Optional Added Security: The magnetic mounting setup uses two 6.6lbs magnets, providing a total 13lbs of holding force. The 64oz version comes with a supplementary magnet for enhanced support with heavier metal bottles. Protective Magnet Casing: Features rubber-coated magnets with a fastener and disc configuration, allowing easy removal or repositioning on any flat metal area without leaving marks. Strong Construction: Built with high-strength, molded components, this sturdy magnetic bottle holder withstands exposure to sunlight, heat, movement, and everyday wear, making it perfect for outdoor. Adaptable Attachment Uses: These magnetic bottle mounts reliably secure large containers on tractors, recreational vehicles, trucks, forklifts, boats, buses, refrigerators, yard equipment, or exercise machines. Specifications: Available in three sizes Practicality: Suitable for a variety of surfaces, it's easy to use at home, in workspaces, or outdoors. It easily holds items like beverage containers, saving space and keeping things tidy. Package Includes: bottle holder × 1 note: 1.Please allow 0-2cm errors due to manual measurement, make sure that you do not mind before you order.  2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.