4 Pack New OEM Replacement Rubber Lid Seal for 10 and 20 ounce Insulated Stainless Steel Tumbler Lid, Flexible Rubber Seals That Fit Major Brands of Insulated Tumblers, Yeti RTIC Ozark Trail Mossy Oak

I was hoping for the best so I only ordered one package of 4 gaskets. They fit my 20 oz Yeti tumbler PERFECTLY! So, I ordered two more packages of 4 gaskets each. I have many Yetis. One of many gaskets that I removed came off and it was disgusting, moldy, gross. But that was just one of 12 Yeti gaskets. Change your gaskets! The nice snug fit is back and no more leaking!

Not being easy to remove is a good thing. I think I order the wrong ones but they fit and work GREAT! The first couple times I used them it was difficult to get the top on and off, but now it is not difficult and because it is so tight the scum does not grow under it like other seals do. I' happy!

Ordered it as a test. A bit tight but works good. Would purchase again.

Pack of 5 will take years to use

These do not fit otterbox 20 cups as stated they would. The gasket is flat on BOTTOM side where otterbox cups need to be flat on the side so it wraps around the cup lid - doesn't lay flat like these do. So bummed... another bad posting on Amazon.

Fitted perfectly on my Starbuck coffee cup. The rubber is a little bit thicker that the original, but still work great and no more leak.

They did not stop my Yeti cup from leaking. I assumed it was the gasket that's why they were leaking to start with so I replaced them with this one and it still leaks.

I really do not understand all the negative comments about these seals but most are from people that are trying to use them for products not supported and the description tells you what they will work with and what they won’t. I used it on A yeti lid and had no problems with it so if you are using it for that lid it works