• OCTALOCK THREAD SYSTEM: The innovative OctaLock lid simplifies opening and closing your Rocks, offering 8 convenient sipping positions with our patent-pending thread design. Just align the lid slightly to the left of your desired position, press down, and twist to the right to lock it securely. To remove, twist to the left until it stops, then lift off. Effortless and precise, every time.
• MAGFLIP MAGNETIC CLOSURE: Our MagFlip technology utilizes powerful neodymium magnets to assist in opening your lid, and holding it open while you sip. It is 100% leakproof for hot, cold and carbonated drinks when the built-in lock is used.
• GLASS-FREE ZONE FRIENDLY: The Rocks was made to go where glass can't, like pools, beaches, and other glass-free venues. It also has a built-in silicone base that functions as a coaster.
• BEVGUARD INSULATION: The Rocks series features our BevGuard insulation to keep your favorite drinks piping hot or ice-cold until the very last drop.
• DISHWASHER SAFE LIFETIME WARRANTY: All Rocks powder coated tumblers are top-rack dishwasher safe, and backed by our lifetime guarantee so it will be your favorite drinking companion for the long haul.