2 Pack 40 oz Tumbler Flip Straw Lid Replacement fit for Stanley Quencher, Flip Spill Stopper Lids, Dustproof Tumbler Cover for Stanley Cup, Blue(2 Pack)

I use this as the lid on my 40oz Stanley. It fits snug and makes the cup spill proof! Which is perfect to use around my toddler. Great way to increase the use of the Stanley tumbler!

Fell victim to an ad of course and got SO excited to try! The thought of being able to make my Stanley leak proof was amazing. They came in and fit perfect, although doesn’t line up how I’d personally like. They were mostly leak proof, only leaked if the hard straw wasn’t perfectly in place. Then came trying to clean it. Yall, it’s IMPOSSIBLE to get completely clean. The hard straw doesn’t come out and area behind and under the hard straw isn’t accessible so water gets trapped there and then of course, gets moldy. It’s disgusting. I threw the one I used away but wish I could’ve returned them. great idea but poor execution!

I really like the top and that it seals, however, the straw that came with it is too short For the cup. I have a 40 ounce cup.

I wanted a leak proof lid for my Stanley, and this one works perfectly. I've recommended it to several of my friends.

Fits the larger Stanley and does not leak but does not screw on straight and the straw part to sip out of is crooked.

I really like that this lid is sturdy, and doesn't leak when straw is closed.

This product arrived dirty and discolored and remains that way despite my numerous attempts to wash it. The straw is defective and doesn’t fit properly so it’s unusable. Save yourself the $7. It will cost me almost as much in gas just to drive to the post office to drop it off.

Got these for my Stanley cups and they fit a 40oz perfectly and work well!