For version 1.0/2.0:compatible with stanley tumbler 1.0/2.0 40oz & 30oz. Straw Topper:Different from the male model products on the market, our product has threads inside the outer cover, which has better sealing performance.0.6cm-1cm straws are suitable.The straw tip cover cap prevents water from spilling out of the straw, and can stop debris and dust from entering through the straw.
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