2 Pack 40 oz Tumbler Flip Straw Lid Replacement Fit for Stanley Quencher, Leak Proof for Stanley Lid Replacement Spill Proof Reusable Tumbler Cover (Pink/Purple)

Will not work properly on a Stanley cup

These fit our 40 oz Stanley cups well. They are a little hard to get off and on, but overall this was a great purchase!

This lid got stuck on the Stanley and could not be removed without using some tools and oil to loosen the edges. It is not made properly to smoothly fit. I would avoid this and look for a different lid by any other maker.

Does not fit a Hydro peak does fit a Stanley 40 ounce colors don’t match in the picture and one of them came broken overall I would not buy these