Magnetic Cup Holder- KAZeKUP Magnetic Cup Holder for Vertical Surfaces. Great for tractors, heavy equipment, office filing cabinets, tool boxes and more! Attach it to any ferrous metal. The KAZeKUP Ultimate Cup Holder can be used with or without the Magnet Attachment. The KAZeKUP's unique design allows it to hold almost any size drink. Made to catch spills and drips. Add the magnet and use your cup holder on your tractor, file cabinets, tool box and more The KAZeKUP is dishwasher safe. Great Gift Idea! Improves Existing Cup Holders found in Cars, trucks, RV's and More