The MagSlider Lid means enjoying a hot drink from our Rambler Tumblers without worrying about spills in a bouncing truck cab or splashes on the go. Unlike other closeable drink lids, Yeti's harness the power of magnets (yep, real magnets) for smooth opening and closing. The Magslider covers the "sipping" hole in the top of the lid, and is held securely in your choice of the Open or Closed position by the internal magnet. The Magslider also has a crystal clear lid so you can always see if you’re in need of a top off. Magnet technology also makes for easy cleaning - you can pop the MagSlider off, rinse, dry, and return it to the Yeti Slider Lid. And the MagSlider Lid is spill- and shatter-resistant, just like the rest of the Rambler accessories. Note — the Magslider is not designed to be 100% leakproof, so it will allow slow dripping. Rather, its purpose is a combination of prioritizing instant access, while still preventing outright spills.