Natural tapered Size #9 Corks Stoppers are perfect to use with most 21mm opening wine bottles, champagne bottles, lab tubes, vials, bottles. Made from 100% natural cork.
Works with our corked bottles: 4 oz Crystal Cut Spherical, 25 oz heavy bottom Nordic Bottles.
It don't work with our corked bottles : Spherical, Square, Boston, 12 oz Heavy Bottom Nordic Bottles, 8 oz Recycled Spanish Boston Bottles You need to get #8 cork for them.
Top Diameter: 15/16" (24mm)
Bottom Diameter: 47/64" (18mm)
Length: 1-1/8" (29mm)