Introducing the non-tip SquidCup system! This portable, magnetic cup holder is perfect for boats, RVs, home, garage, or office. With patented dual-magnet + micro suction cup technology, it offers unmatched holding power in both vertical and horizontal positions. The BPA-free 16 oz Tumbler features a powerful neodymium magnet, double-wall insulation, and a convenient removable lid with straw slot. The weatherproof, magnetized silicone rubber base with 20 micro suction cups ensures easy repositioning on any smooth surface. Enjoy the benefits of a secure and versatile cup holder with SquidCup!