Durable Cup Holder: The Magnetic Cup Holder for Tractor is made of 304 Stainless Steel Material, which is extremely sturdy and durable. Our upgraded magnetic cup caddy has a coating on the outside to prevent rust for improved durability, thus it can be used for many years. Strong Magnetic Force: There are 6 powerful magnets wrapped in black rubber(Anti-Rust/Anti-Scratch), don't worry about the powerful magnet will scratch the metal surface. And the magnet can withstand 50lbs of pulling force, don't worry about your cup holder will move around. Versatile Convenient: The powerful magnet attracts to any ferrous metal surface including Tractor/Mower/Gardening Machine...... When you are working in the garage/outdoors, you can place your favorite beverage or water bottles in the Cup Holder. If you want to remove the Cup Holder to another place, simply lift straight up. Easy to Install: The first step is to align the two holes, then put in the screw and tighten it clockwise with a screwdriver. It is very easy to install the Magnet Cup Holder. Kind Remind: the powerful magnet attracts to any ferrous metal surface, Not Suitable for Aluminum Surface or Stainless Steel Surface. Quantity of delivery:1 Product color:blackProducts from GuanGuan's store