Oral Syringe Adapter Plugs, Compatible with 12 and 16 Oz Oval, 28 mm, 50 Count (Pack of 1)

Pharmacy said there is only one size stopper. None are made for 300 -500 ml bottles. These stoppers fit great

I use these for pet wormer bottles. They’re big in Animal hospitals. There really is no substitute for them. They often fit in meds to give your pets that needed measuring. Actually a ‘genius product’. My friends are going to love me. There’s no way I can use them all.

I’ve tried multiple different bottles, sizes, medication types, etc and these have not fit a single bottle. The plastic does not have any give, preventing the cap to fully insert and not just pop right out with inversion of the bottle.

The reducer fits snuggly in the bottle, but the hole is too big for my oral syringes. I can't use them without leakage around the syringes.

Product arrived within a day, which was great. The item fit the 16oz bottle as advertised. I did not give the item 5 stars because the items bag came open and I only received 32 rather than the 50 that I paid for.

It's a dispensing cap. It fits bottles of the correct size and aids in dispensing the meds.

I’m in the medical field and waste is not an option. Different sizes available to fit medicine bottles. No waste every drop used

I didn’t notice until I started using them that they are all the same size. They are all the bigger size so I can’t use them on any of my children’s over the counter medicines, which is what I bought them for.