5 Pcs 24/20 C24 Plastic Stoppers for Jointed Glassware and Laboratory Bottles.

This is a pack of 5, 24/20 polypropylene stoppers, which fit C24 24/20 ground glass joints, usually found on reagent bottles and volumetric flasks. C24 stoppers fit into a ground glass neck with an opening of 24mm at the top.