Add a bright detail to any Rambler Tumbler or Mug with one easy switch. These pop-on, pop-off magnets are dishwasher-safe and pair perfectly with our 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 aiming to prevent drink mix-ups.