Threaded Replacement Stopper: Stanley compatible thermos replacement part for Stanley thermos classic models. Made from food grade, BPA-free material with silicone rings to avoid any leaking. ✔ Threaded Primer Cap for Stanley Thermos Flasks.✔ Pico para Mate Argentino, Mate Uruguayo, Mate Brasileño, Mate Paraguayo. ✔ Easy to clean and replace. Stanley Mate Drink - stopper replacement. ✔ High sealing silicone gel ring.✔ CLASSIC VACUUM BOTTLE 1.1QT/1L / 2QT - SINCE 1913✔ Stopper for Stanley thermos dimension - 2.4 x 2.4 x 2.4✔ BLACK Color - (As shown in the figure)✔ HAND WASH ONLY DO NOT MICROWAVE