GAUDIESilicone Spill Stopper Set of 4, Cup Accessories for Stanley 30/40 oz, Including Straw Cover Cap, Square Lid Stopper & Round Leak Stopper Plug (White)

It is impossible to find better and cheaper than this, I have ordered many times and they are all of the same quality. Everyone I gave as a gift is very satisfied. It comes in a plastic quality box. You should definitely bring new different colors guys👍

Sufría porque mi Stanley se derramó varias veces, con esto es historia antigua. Ya no se derrama.

I don't personally have a Stanley but my kiddos love these.

Keeps my Stanley cups from leaking!!

Pro:- stops the leaking!- easy to installCon:- color does not match the Stanley colors- because it fully seals, it makes it hard to suck/drink. I ended up taking it off for daily use and only use it when I am traveling and need it to be leakproof.

The media could not be loaded. We love this product! It doesn’t leak!

Still leaks