Will a straw fit thru the top opening? What is the diameter of the top sip opening

I’ve bought two of these at different times. The older one fit a straw easily, the newer one’s opening is much smaller, with some effort you can squeeze a straw into it but it’s jammed in very tight. Since they are glass, I think the opening size will be variable.

Will the 14oz double wall Tupkee tumbler be returning to stock ?

This item was a COMPLETE waste of $$$$$!!!!!

If the lid is made of glass, is it possible that after 2 weeks of use the mouth of the lid changed the shape from smooth to wavy? I used hot coffee as

No, for glass to change it’s shape, it would have to be heated to a temperature many times hotter than the hottest coffee.

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Description

Sip in Style! ☕️ Elevate your beverage game with elegance.

EASY MAINTENANCE - Silicone components are removable for effortless cleaning.
LEAK PROOF CONFIDENCE - Equipped with a high-quality silicone seal to prevent spills on the go.
THERMAL SHOCK RESISTANT - Crafted from hand-blown borosilicate glass, built to withstand extreme temperatures.
NATURAL TASTE EXPERIENCE - Enjoy your beverages without any plastic or metal aftertaste.
ELEGANT FUNCTIONAL DESIGN - A stylish tumbler that fits perfectly in your hand and your lifestyle.

The Tupkee Double Wall Glass Tumbler is a 14-ounce, hand-blown borosilicate glass travel mug designed for both hot and cold beverages. Featuring a leak-proof silicone seal and double wall insulation, it ensures your drinks stay at the perfect temperature while keeping your hands comfortable. With an elegant design and easy-to-clean components, this tumbler is perfect for the modern professional on the go.