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Natural tapered cork stoppers. 100% cork
What size cork do I use?
#1 Cork stoppers are recommended for bottles openings/or to plug holes with a diameter of about 3/8.
This will leave 1/2 the cork in the bottle and 1/2 showing.
If you want less showing try a smaller size, show more a size up.
Top diameter = 7/16" (11.1mm)
Bottom Diameter = 21/64" (8.3mm)
Length = 5/8" (15.9mm)
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Tapered Laboratory cork stoppers