Silicone Spill Stopper Set Compatible with Stanley Cup 2.0 30oz & 40oz with Straw Cover (Set of 2, Mist)

I adore these stoppers. They fix what the premium cup “brand” couldn’t or wouldn’t. Stops all leaks. Fit well. Works well. Nice color.They will create a much stronger suction when drinking from the straw. I use a silicone straw and will gently press the straw away from the seal wall in order to let a small amount of air flow through to help offset the internal pressure.These seals are awesome.

Ever since I got my Stanley I had the problem of it constantly spilling. I can't put it in my backpack because it can't fit in the side and if I put it into the actual backpack it might mess up my work so I had to keep it out of my backpack and it would constantly spill in class or when I would walk with it and it was extremely annoying. I got this to aid with that problem and it works really well. I can completely turn the cup over and not a single drop comes out. The stopper might look too big for the whole but trust me it goes in there and it's pretty snug. My straw stays completely still too. The only thing I don't like about it is that they're isn't any designs available for the straw topper but the good thing is that I can take my existing straw topper and use hot glue to put the design on. Would definitely recommend and would definitely buy again if needed.

Picked these up for my daughter because she had a bad spill with her Stanley , she finds these to be well made they stop any leaks so they work well. Fit her lid and straw like a glove and make it a little more water tight

Worked out perfect for my Stanley cup. I just wish it had a tighter grip on the straw.

I have a 3 year old who loves to dump things and he can't get my Stanley to leak.These are silicone molds that make your Stanley virtually leak proof. They come in a nice travel box and are easy to clean and install. I got the 2 pack and put them on both my Stanleys and my son hates that it almost keeps my straw in my cup, it's great. LolThe fit is snug, which is great and the pieces have great durability since they are silicone. I got black fittings and just ordered my mom clear ones since the last set she got (from another company) still leak a little.I highly recommend if you have kids or you are accident prone (as we are)

I'm so glad I purchased these. They work perfectly, no drips and made with great quality. They are easy to clean don't hesitate to purchase them.

Works as designed!!! Even when I turn my Stanley upside down, there are no drips or leakage! Somebody had commented that it requires you to sip harder, but I never noticed any difference. I love it!

It was suppose to come with 2 straw cover there was only 1 straw cover