Raymall 8pcs Stanley Spill Stopper For Stanley Cup 40oz/30oz H2.0, Silicone Spill Proof Stopper Set With Clear Straw Topper, Cute Cloud Straw Cover, Square Spill Stopper and Round Leak Stoppers

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.

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

Absolutely love the product

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.

it’s good! it’s cute, the flowers are a little slanted but it’s okay