Spill Stopper for Stanley Cup 40oz/30oz, 8pcs Silicone Spill Proof Stoppers for V2.0 Stanley Cup with Pink Cherry Blossom Straw Covers

The pink flower was an adorable addition to my daughter’s Stanley. It has been knocked over and tipped in her bag several times with no leaks so far. I am able to hold the cup upside down and still nothing comes out.

This product made my Stanley not leak at all! It comes very handy just the straw topper made my straw collect chapstick in it. You cannot see the stoppers except for the topped so it is very good! They work well and so cute.

I carry my Stanley in my tote bag going into the office so my hands are free and this little set works perfectly to prevent leaks. I realized once in the beginning that my cup had leaked all inside my tote and onto my jacket. This little set is completely silicone, clear-ish white, and when my cup gets tilted sideways or when water is sloshing around from being carried it doesn't leak at all. Now as I'm taking these pics I held the cup angled upside down and fluid was coming down the straw in a slow drip. My cup never goes fully lateral so that's not a big problem for me. This set works perfectly for when Stan is in my tote in the passenger seat and I'm walking with it. No spills!! I love it.

I love these! now my stanley is leakproof and the cloud topper is cute!

I love how it looks

Great price for how efficiently it has stopping the water from my Stanley Cup from leaking! It fits perfect on my 30oz Stanley Cup. It is easy to use but it is a bit hard to put on initially. Once you get the hang of it, you’ll be able to put it on with ease the next time! It is of high quality thus far! Will provide an updated review later on.

it works but i couldnt figure out how to keep the cirlce part on

Cute! Easy to clean, great quality with no leaks.