Straw Cover Cap for Stanley Cup,Silicone Straw Topper Compatible with 30&40 Oz Tumbler with Handle (Purple+Lake Green+Light Blue)

I love these straw toppers. Wish I could find some that are butterflies

Cute fit perfectly

I got this for my wife as a stocking stuffer, as part of her Stanley 40oz tumbler I got for her las Christmas. for $7.99, you get a set of 6, or $1.33 each. She has a pinkish Stanley and uses the pink cap. It nearly matches the color of her tumbler. It doesn't prevent leaks but if the tumbler falls on it's side, it slows the leak. It even works to slow the leak upside down. Best of all, it looks cute and she loves it!Overall, highly recommended. Just know that it doesn't prevent leaks but it's not intended to. It's decorative and also keeps debris from getting into the straw. 5 stars!

Overall not a bad product. The only thing is that they are much bigger than expected. It just seems super bulky when I put one on my cup. Probably will still use, but wish they were smaller.

My wife uses a stanley cup every day when she goes to work. She really appreciated the idea of accessorizing it. This ended up being a cute little accessory to add on and keep the lid on your drink. It fits the straw perfectly and doesn't hinder usage at all. Easy to clean (by hand as we do all of our stanley equipment). I recommend this if you are looking for a little something useful for your stanley cup user that will brighten their day.