Add a subtle detail to any Rambler® Tumbler or Mug with one easy switch. These pop-on, pop-off magnets pair perfectly with our dishwasher-safe MagSlider™ Lid so you can mix and match your colored magnet with your favorite Rambler® Drinkware by the hour, or by the day. Not to mention, it’s a pretty handy trick if you’re aimin’ to prevent drink mix-ups.