2-Pack Anti Wrinkle Straws, 10 mm x 9.45 inch Borosilicate Glass Reusable Straws for Stanley Cup, Wrinkle Free Straws, Reduce Lip Wrinkles - Perfect for Coffee, Juice, Cocktails.(Clear)

I ordered these for my 40oz Stanley cup and they do not fit.

Really liked that they are glass, nice weight to them. Liked the design, will order more!!

I bought this because it specifically says in the description that it would work for a 40 oz bottle. It is way too short- I had to by the lipzi because that is the only one with an extender

The straw is nice looking and works great, just doesn’t reach bottom of the 40oz Stanley like advertised. So disappointing

These were my first anti wrinkle straws. They work, and do what they are supposed to do. You use them sideways, and don’t wrap you lips. To clean them, you can pop the notch out of the end. You do have to drink slower out of these just because of the angle and shape- or maybe my I experience? These are glass which I do like. They are easy to clean and easy to use.

I got this as a preventative measure to lip wrinkles. I wasn't sure how comfortable this would be but it didn't feel weird drinking out of the straw. It is made out of glass and it is easy to clean, comes with a cleaning brush I also put it on my delicate rack in my dishwasher and it did well. It has a plastic stopper on the end so that you can drink out of it without liquid coming out the end. I hope this product works and I can keep lip wrinkles at bay.