Replacement Gaskets Compatible with Thermos Stainless King 16 Ounce Travel Tumbler Mug Gaskets Seals, Fits Stainless King and Comparable Travel Tumblers Mugs - Food Silicone Seal Without Leakage (2)

They don’t fit well to high having to yous them

Seal does not fit correctly and does not seal.

fit perfectly with both my travel mugs, very happy

Did the trick. For some reason I lose one of these now and then.

worked great in our cups which we had purchased second hand - old seals were badly stained. new seals = new life for cup

I'm so glad I found these. I drink coffee and ice tea, so the seals on my cups look really sad. These fit perfect on my Thermos insulated cup.

I'd lost a gasket for my mug after putting it in the dishwasher. These ended up fitting perfectly as replacements. It also worked well to renew the other gaskets in the mug as there was some "patina" from regular use.