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 out MagSlider Lid, so you can mix and match your coloured magnet with your favourite Rambler Drinkware, by the hour or by the day. Not to mention, it's a pretty handy trick of you're aiming to prevent drink mix-ups.