Choose a round double-wall cup with a twistable silicone membrane opening and a listed capacity of up to 300 ml.
$43.99
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A CLOSER LOOK
Twisting the membrane narrows the opening, including around a straw as described by the supplier. The source claims two-hour hot and six-hour cold retention and leak resistance, but gives no test conditions. These are not guaranteed durations or a spill-proof promise.
Explore the specificationsThe silicone membrane twists to change the opening.
A double-wall body is described.
Seven numbered styles and a two-piece Style 2 option are available.
The source describes use around a straw but does not clearly include one in the packing list.
No. The absolute leak claim is not established by a supplied test.
No; confirm the actual cup’s material and microwave instructions first.
No Cover Twist Cup Travel Portable Cup Double Insulation Tumbler Straw Sippy Water Bottles Portable For Children Adults
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