Your Rambler Tumbler will be drawn to the magnetic power of the MagSlider Lid. Literally! The MagSlider uses magnets for smooth opening and closing, so now you can enjoy a hot drink without spills at camp or splashes on the go. MagSlider pops off for easy cleaning. Crystal-clear design lets you see when you need a top off. Accessory for Rambler 10 oz. Lowball, Rambler 20 oz. Tumbler, or Rambler 30 oz. Tumbler Magnets keep the slider securely in place Spill-resistant, shatter-resistant, and BPA-free Dishwasher safe-because no one needs more work Order today!