Yeti Rambler MagSlider Lids 10/20 & 30The MagSlider Lid means enjoying a hot drink from your Rambler Tumbler without worrying about splashes on the go. Unlike other closeable drink lids, the MagSlider harnesses the power of magnets for smooth opening and closing, and has a crystal clear lid so you can always see if you're in need of a top off. This 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. Dishwasher-safe.