🔬 Seal your science in style — never miss a breakthrough!
The CS-10-100 Cork Stopper pack includes 100 natural cork stoppers designed for secure sealing of test tubes and flasks. Made from food-safe cork, these stoppers are perfect for scientific demonstrations, density experiments, and customizable DIY lab equipment.
A**R
A CORK IS A CORK IS A CORK ... WELL KIND OF
They were true to fit. used them to plug holes in bottom of planter pots (garage sale items) and a old bathtub ... true to size and hold well ... suggestion if using them to plug a hole in wood or in pots use silicone glue around the top and about a inch down before inserting them ... that makes sure there is a good seal.SPECIAL NOTE: FOR THOSE WHO DID NOT GET EXACTLY 100, REALIZE THE MANUFACTURER USES WEIGHT THAT EQUALS 100 CORKS IN THEORY SO YOU MAY HAVE LESS OR MORE DEPENDING ON THE CORK WEIGHT.
C**N
Perfect
I used them for 5ths I turned into portions and they worked perfectly
A**S
Leaks!
Bought these to make wine. When I bottled I noticed that chunks are broken out of the side of these corks.When pressed in to the bottle and turning sideways they began to leak.Disappointing. Bought these because the vendor stated that these were made in Portugal. Was hoping these would be of a decent quality.
M**.
Good quality
Good quality. consistent measurements.
J**S
Five Stars
Worked perfect for the craft I was making.
A**A
I clearly states there are 100 corks and when they ...
I clearly states there are 100 corks and when they came today I counted to make sure there are only 95. I will now be short 5 corks for my class to do their project on Tuesday. I am one very unhappy teacher.
W**L
High quality corks
Very consistent size, very high quality. Thumbs up!
R**N
Not an air tight seal.
I used these corks to make chemical rockets. They did not perform very well as an airtight stopper for the bottles. Many leaked.
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