Boon Snug Sip Universal Water and Juice Silicone Bottle Toppers - Soft Spout Conversion Caps with Spill Proof Valves - Silicone Bottle Covers for Travel - Includes 4 Toppers and 4 Cases

bright colors, easy to clean, Good silicone grade no smell at all. I use it for shelf stable bettergoods whole milk. Fit perfectly. I really recommend

Work really well on any kind of a water bottle a little hard to get out at first, but once it’s used a couple times it works better. It will leak a little sometimes after you used it for a while. Would be great for breast-fed babies.

Boon has a really good product line and I recommend them overall. This universal spout is perfect for toddlers whom aren’t quite ready for open drinks. I tested it in a few bottles I had available and found it is pretty close to universal. This spout fit perfectly on wide mouth bottles (Gatorade, Cirkul, etc.) and found no leaking. I did find it helpful to remove the entire bottle lid including the plastic ring at the bottom. I also found that the spout fits okay-ish on standard narrow mouth bottles (water, soda, etc.) and minimal to zero leakage. With the narrow mouth bottles I did find that the spout has a less tight fit, minimal leakage, etc. I did rate this product as a 4 star vs 5 for two reasons:1. I would have personally preferred to see two separate sizes one for narrow and one for wide mouth bottle. This why the narrow mouth bottles aren’t getting the short end of the stick. Due to the fact that this is utilized by kids minimizing leakage and creating a tight secure fit is really important.2. I would have personally preferred to purchase this item based on one individual single color versus a packet of four different colors. This set combo included two girl colors and two boy colors. Some kids are extremely picky about colors, which is very common and normal. This leads into an issue where wasted product is occurring. Due to this it does significantly decrease the cost value rating.

Soft yet sturdy silicone. No odor or taste noted. Easy to clean.

To put it simply, it needs an air inlet valve. It's okay for kids that are only sipping.In general, this is everything it says it is! Fits on a typical water bottle (generic water bottle verified) and sports drink bottles (Body Armor verified). It will not spill and the nozzle's cap fits tight over the nozzle. I have even dropped it (for testing) and it stayed on. Also, the cap/nozzle didn't look any worse for wear after the drop since it is all a very stiff and thick silicone piece. So good on durability.The problem is the function as a drinking nozzle! As an adult I test these things to guide my kids. The vacuum force needed to drink is a bit surprising. Lightly biting the tip of the nozzle helps, similar to how you might for a camelback nozzle. From there the problem is the back pressure in the bottle. The cap doesn't have a way for air to go into the bottle as you draw on the nozzle. This causes a vacuum inside the bottle and if the bottle doesn't give, then you're gonna have a bad time. Luckily most bottles do give. Body Armor bottles don't give and it makes drinking from them like lighting a cigar though a coffee straw.So, yes, it's a great cap, but don't use it for chugging drinks like a parched athlete. Cheers!

I really wanted to love these but unfortunately I can’t. They are almost impossible to drink out of and they do not stay on the bottles as well as I anticipated.

They work great! I love the fact they all have a case for easy travel! They fit any size bottle! Easy to use but hard for my kiddo to take off which is awesome! Seal completely no leaks! Good purchase for price

Love these and they fit danimals!

Puedo convertir cualquier botella en un vasito para mi bebé de año y medio. Ajusta en botellas de yakult, jugo gerber, botellas de agua convencionales. Excelente !!! Traen sus cajitas para mantenerlas limpias cuándo no se están ocupando.

We love these things. They're so handy to leave in the diaper bag in case we need to add a spout to a regular bottle. So far we haven't found anything it doesn't fit onto, it's pretty universal. Yes, it will come off if you pull on it or if your kid manipulates it enough. Or if you squeeze the bottle too hard. But it's more versatile than a straw, and better for the environment. We love this for traveling.

cumplio con mis espectativas

Absolutely horrendous can’t use them at all you have to bite down on the top to get any liquid out! Would not recommend!