These seals are made out of the best grade cork available.

Packaged in a screw top container which protects and keeps the corks in top condition

The centre hole is 3mm dia, outside diameter is 6mm, and the thickness is 5mm

The corks have been impregnated with medical grade paraffin wax which 

lubricates the surface and helps the plunger rod slide easily while maintaining a seal.

Price is for 10 corks 

Thank you