Siliskin Sippy Tops, 2pk, Fresh and H2O color.

Maybe it's my own fault, but I was under the impression these would turn any cup into a sippy cup. They're isn't enough give to get them over any cups we own. And we just own normal, target and Walmart type cups. No crazy sizes! Even the children's cups AND SIPPY CUPS we own are too big for these. There is almost no give at all. I was expecting a silicone with a decent amount of give. These have really no give at all. I was hoping we could take these with us for those times we get stuck somewhere longer than expected and need to get the toddler a drink to save space in our bag.

It said in the description (and the title) that these will fit any cup, I used a normal small mouthed childs cup and I really had to strain to geth it on. If it haded been for the help of my husband I would have spilled the drink I had in the cup. It may fit on a baby bottle better.Secondly as he's (my son) drinking the lid collasped down because the air flow hole didn't allow for any air to get in as he drank. I had to pinch the mouth piece to get it to pop back up. I wish these would have worked better but going to stick with what I currently have.

They don't fit on slot of cups only one I could get to fit are the kids little plastic cups that come with their own kids so it defeats the purpose. They are also pretty difficult to get on. I gave it 3 starts though because the cup it did for it for well and didn't leak

I am so disappointed! I really love the concept of these sippy cups, but the lids don't last. I am returning these because the lid started leaking from a tear after less than 2 weeks!We only used it with the  Silikids Siliskin Glass Training Cup, Tart, 4 Months  and were very gentle with it because the original lid had done the same after about a month.I have finally given up on this product and am instead ordering  Pura Kiki Stainless Steel Sippy Cup, 11 ounce , whose sippy spouts are supposed to work with glass bottles as well.

I really really wanted to like these! They look like the perfect solution to tons of sippy cups and their valves. However, they are extremely hard to get on without making a mess, and barely fit on the tiny plastic juice cups I bought to put them on. However, when they do go on, he likes them a lot.

These are very difficult (although not impossible) to get on a cup of any size. I actually dread my kids needing refills because it's such a hassle to get the lids off and back on again, especially if either the lid or cup is even slightly wet. However, they don't leak and vent really well. I would have given this a few more stars, but after having these for about five days, one ripped as I was attempting to get it on a cup. I really wanted to love these, but ended up being very disappointed.

I REALLY like these with jelly jars as sippy cups for my almost three year old twins. They're not simple to put on, and if you have bad arthritis these are not for you, but as a typical mom I find them perfect. The trick is to be sure that the inside of the lid and the rim and outside of your cup are DRY. Otherwise they will pop off. I have very little spilling, and so far no broken jelly jars. I'll most likely buy another set of two for when the first set are in the wash. I did have a problem with another product from this company, but I emailed them and they immediately and without issues, sent me a replacement product. That means they are a company worth following.

Don't be fooled they are extremely tough to get over any cup. I actually haven't found a single cup I am able to get them to stretch over the lip of. And when I find the cup that works it will be so small I'd be refilling every half hour. Not to mention probably spilling g the water all over , they are not an easy item to use. Great idea, was looking forward to using.