£2.75

We have two kinds of oil pourer.  One with a rubber bung and one with a cork bung. Some people really like a cork stopper, but the rubber bung will fit more bottle sizes if you’re concerned about a good fit.

The diameter of the cork stopper is 20mm at the widest and the rubber stopper has a 23mm diameter.

Of course you can use them for vinegar or anything else too.