Two large tapered cork plugs. They compress and lock into a neck as you push them in, which makes them the simplest way to close a jar, a carafe or a wide-mouth bottle that has lost its lid — including the glass tubes and apothecary jars people store in.
Specifications
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Conical: about 3.15 in across the top, 2.36 in across the bottom, 1.2–1.6 in thick
- Cork compresses, so each one covers a range of neck diameters rather than one size — measure your neck before ordering
- Two per pack
- Reusable; trim to length with a knife if you want it to sit flush
Read the size before you buy
These are large. The narrow end is still well over two inches across. They are the right answer for a jar neck and the wrong answer for anything small — if you came here looking for something to cap a packed bowl, that is a different product: see the silicone bowl covers, which stretch over the outside of a bowl and are built for exactly that.
What they do not do
A cork is a plug, not a gasket. It slows air exchange; it does not give you an airtight seal and it is not odour control. It will not hold a humidity level and it will not keep smell inside a bag or a room. For that you want a sealed container — see Keep It Fresh.
The listing describes the material as cork; the manufacturer's own attribute field says synthetic cork, so treat it as a cork-type plug rather than a guaranteed natural one.