BrüMate Rocks 12oz Insulated Lowball Whiskey Tumbler | 100% Leakproof Locking Lid | Insulated Stainless Steel Whiskey Glass | Perfect for at Home, Camping or Travel | BPA-Free (Polished Stainless)

OCTALOCK THREAD SYSTEM: The OctaLock lid makes taking your lid off and putting it back on a breeze, and it has 8 different positions thanks to our patent-pending thread design. Just put the lid on right before the location you want to land on, push down and twist to the right to lock it. To remove, twist to the left until it stops, then lift off. Effortless and precise, every time. 100% LEAKPROOF LOCKING LID: Our BevLock lid is fully leakproof for hot, cold, and carbonated drinks when locked. Plus, our MagFlip technology uses powerful neodymium magnets to lift and hold the cover open while you sip - preventing leaks, spills, and frustration. 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 whiskey tumbler features our BevGuard insulation to keep your whiskey at the perfect temperature until the last drop. Can also be used for hot, cold or carbonated beverages. DISHWASHER SAFE + LIFETIME WARRANTY: Most Rocks tumblers are top-rack dishwasher safe, and backed by our lifetime guarantee so it will be your favorite drinking companion for the long haul.