TanGum Colt/Lamb Nipple

have used for yrs on standard baby bottle , had to make vent hole larger

I use these nipples on standard glass cola bottles. I have not had many problems with them. They are hard to stretch at first, but they get easier. The things I like best about these are that they are not as hard as the black rubber ones, and they don't s

I was extremely disappointed that the nipple does not fit over a soda bottle. the nipple base opening is too small and the material to rigid to stretch over a bottle. I tried putting it on a beer bottle hoping the solid rim would help, but it did not. A t