10PK Cork Stoppers, Size #5 - 12mm Bottom, 17mm Top, 22mm Length - Tapered Shape

Pack of 10 cork stoppers. Size #5 - each stopper measures 22mm in length, has a base diameter measuring 12mm, and a top diameter measuring 17mm. Corks are made of natural bark material and feature a tapered shape. The reliable construction will not crumble or break easily. Ideal for bottles, flasks and test tubes with a mouth/opening measuring 13-15mm in diameter. Designed for use in professional laboratories but are suitable for a variety of applications in the classroom, home and garage.