20 Pieces Foam Stopper Plastic Foam Plug 50mm Openings for Tubes and Flasks, Beer Making, Yeast Starter

Additional Details from the Manufacturer

This item information is coming from the manufacturer. Some of the details may vary from the Nellis Auction listing. Please check the Quality Rating and Notes for information specific to this listing

More features

• Abundant in amount: you will receive 20 pieces white foam plugs, the amount is quite enough for you to use with test tubes and flasks, easily manipulate to fit flasks or tubes
• Reliable material: this foam plug is made of polyurethane material, with a temperature resistance of up to 120 degrees Celsius, safe to use, and it will rebound without deformation within 24 hours, durable enough to be applied for a long time
• Product size: the diameter of this foam stopper is 50 mm/ 1.96 inch, and the height is 38 mm/1.5 inch, suitable for containers with a diameter less than 45 mm, come and use these foam stoppers with confidence
• Different with rubber stopper: as opposed to a rubber stopper and airlock, a foam plug stopper allows airflow in and out of the flask while still preventing unhealthy things from entering the flask, allowing airflow in to get the oxygen your food or other things need while still letting CO2 out
• Usage scenes: these foam plugs are suitable for stoppering most types of container, such as tubes or flasks, eliminating the need for messy and hard to use aluminum foil, also can be applied to using beers for lagers