Velaco 7Pcs 0.4in/10mm Diameter Silicone Straw Covers Cap Compatible with Stanley 20 30&40 Oz Cup, Straw Toppers for Stanley 40 Oz Tumbler with Handle, Dust-Proof Straw Caps for Water Bottle

I have several water bottles that I use regularly to avoid disposable bottles for water. Most of those reusable water bottles did not come with anything to cover the straw. Really needed some stroll covers to avoid start getting in insects getting in and also to potentially avoid or minimize some spills. These worked great over two different size straws that I had. They're made for the larger straws, but they also fit my smaller straw so I am very happy with them. The colors were really nice too.

I've been needing a way to cover my straws to not let anything in or out and I found these covers that are surprisingly durable and good quality. They are a thicker material that doesn't easily tare. They fit on my straw perfectly and come in so many colors and designs I really think it makes my water taste better, and more fun to drink!

Fits snuggly over cup straws flexibility enough to stop water flow

They fit the straws and stay in place

Works great for the Stanley cups.

These work very well with the Stanley straws. Not sure why they don’t include these on their straws when you buy their cups, but you really should get these. They come in a nice selection of colors and are made of a durable silicon material. Very good price too. Highly Recommended!

These are fantastic & keeps bugs out of your drink. Easy to open too. Sturdy. Used mine daily for approx 6 mos and no sign of ware. Easy to clean.

I bought these for my daughter's simply modern cup. They fit a bit loose on the straw but fit perfectly on my Stanley.