Introducing the Toadfish 10oz Non-Tipping Rocks Tumblers. Double-walled stainless steel, designed to keep your drink icy cold and accident-free. Hard to tip, but easy to lift. Pour your favourite drink and the SmartGrip Technology keeps your beverage upright while being hit or rocked. The Toadfish Rocks Tumblers hold on when others can’t. Also, for every product sold, we will replant new oyster beds to help clean our coastal waters. Let’s Put Em Back. FEATURES: SMARTGRIP TECHNOLOGY – Patented SmartGrip technology makes it hard to tip but easy to lift. DOUBLE WALL VACUUM INSULATION – keeps cold drinks cold and hot drinks hot until the last sip STAINLESS STEEL – Made with high-grade stainless steel, making them puncture & rust-resistant. GRADUATED MEASUREMENTS – Built-in graduated measurements so you get a perfect size pour every time. SHATTERPROOF LID – Durable lid with easy-slide tab will keep your drink safe and easy to sip.