Usage Tips:1. and Sturdy: Enjoy peace of mind with our magnet cup holder, featuring a safe design where the magnet is covered in black rubber, ensuring no scratches or worries about finger injuries.2.Convenient Convenience: Effortlessly attach your magnet cup holder to any flat ferrous metal surfaces; its super strong magnet ensures it stays put without shifting.3.Versatile in Use: Enjoy a drink wherever you go- in the car, on the treadmill, and even on the fridge. Our magnet cup holder is versatile and perfect for home, factory, and other settings.4. Material: Our magnet cup holder is crafted with top- carbon steel material and a thick electroplated surfaces for durability. This sturdy and enduring cup holder 't rust and can be used for many years, providing you with reliable performance.5.Multi-Purpose Compatibility: Our magnet cup holder securely fits a range of cups, jars with sleeves, bottles, bottles and more, with a coaster diameter of 3.5 inch and height of 3.5 inch, catering to your different placement needs.Made with high-quality materials and featuring a super strong magnet, this holder is perfect for use in your home, factory, or any other location. With a safe design and a coaster diameter of 3.5 inch and height of 3.5 inch, trust that your cups stay secure and upright.Specification:Colour: BlackMaterial: IronPackage Contents:1 x Cup HolderOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.