Spill Stopper Set for Stanley Cup 2.0 40oz 30oz, Accessories Including Straw Cover Cap, Fix Leak Stopper and Lid Spill Plug, Clear

I absolutely love the Stanley spill stopper! The combination o the straw topper and rubber seal under the lid makes a huge difference. My water bottle used to leak all the time, but not anymore! With these in place, everything stays sealed, and I dont have to worry about spills, whether its in the car, at my desk, or in my bag. It's such a simple solution, but it works perfectly. Highly recommend for anyone who uses their Stanley on the go.

Works perfect. I am able to turn my cup completely upside down and water will only come out of the straw if the straw cap isn't on. If the cap is on there is no leaking at all! Highly recommend.

Incredible product, fits perfect. Completely spill proof as advertised, also easy to take on & off for cleaning purposes. Cute straw topper too!

I think they don't stop leaks as well over time, so I may need to soak them in boiling water or something to help them retain their silicone shape, but other than that it has served me & my 40oz stanley well!

Wow, I was shocked….it works!

Awesome product. The liquid never leaks out when cup tumbles over. Great price!!

This set works perfectly, and is easy to install. My daughter in law recommended it, and I’m so thankful! I couldn’t take my Stanley anywhere with me, since it spilled even as I was walking to the car. Now it is great!

Stopper works great ans stop the spills