This cup holder can hold insulated mugs, hot or cold insulated containers, aluminum cans, fountain cups, glass bottles, and much more. This high-quality caddie is also great for storing small objects and tools that you want quick access to, like a can, an automotive spray bottle, an aluminum lubricant, or a different accessory. Powerful magnet attracts to any ferrous metal surface including toolbox, metal cabinet or inside a van or school bus. Our caddies come in red or black. Master Magnetics was founded in 1976 and is currently located in Castle Rock, Colorado.