These Plastic Top Flanged Corks from Youngs are from top-quality natural cork which has been cleaned, chamfered, lightly waxed and bonded to a plastic white top. They can be inserted by hand, and used either to cork a bottle that will soon be drunk or for resealing an unfinished bottle. Plastic Top Flanged Corks Features Youngs Plastic Top Flanged Corks White (30\'s)/5538 18.5mm approximate cork size 21mm approximate plastic top size Made from cork and plastic Corks/Reseals bottles Youngs\' Ref. MPN: 5538Colour: WhiteSizes: One SizePM Ref: 414178