🔬 Seal the Deal with Style!
The RS-3-1 Rubber Stoppers are size #3, drilled with a single hole, and come in a convenient 1-pound pack. Perfect for laboratory use, these durable black rubber stoppers provide a reliable seal for test tubes and other applications.
W**L
Five Stars
What can you say about a rubber stopper?
B**A
rubber
i would like to ask if you have something same size but stronger.like stronger rubber
R**S
Five Stars
Was as advertised.
R**M
Better than screws when installing yoir fan!
Great for installing your Fan! Very strong!!!##
L**5
Not exactly 1lb.
The stoppers look good, but I was promised 1lb and after measuring I found they only weighed 13.4oz.which means I'm missing about 7 stoppers in my package as each one weighs about 4oz.
J**N
Don't fit the tubes they are advertised for (25x150) well
Bought these for our daughters science project. We purchased them specifically for the test tubes that are recommended by Amazon for them (25x150). They don't fit well at all they almost go all the way into the tube and don't seal well at all. They are difficult to get out because they slide so far into the tube. I wouldn't recommend these products for the Tubes they say they fit.
N**L
Unholiest holes
No holes in delivered product as stated in title, description and picture product is supposed to have 1 drilled hole in each stopper. They do not
A**
Oil plugs?
VERY hard rubber, not very smooth, came COVERED in oil.
D**D
Strong
This is one strong magnet usable for a variety of situations. With a galvanized steel cap used it as a door handle for a patio door and it works fine.
C**S
What I was looking for
Just what I needed. Will have lots of spares.
A**R
awesome
worked great for my purpose
M**K
Yup there stopper
Working just fine
Trustpilot
2 days ago
4 days ago