I want to know what they are for I thought something different
1507698
A hand boiler is a glass sculpture used as an experimental tool to demonstrate vapor-liquid equilibrium in science class.
1507699
Hand boilers are much more commonly used as a scientific novelty. It is used as an experimental tool to demonstrate vapour-liquid equilibrium.
1507700
It's just a novelty toy. As a science teacher I can use it to demonstrate certain concepts in my lessons but I've also seen them used on office desks if they've found one that's capable of freely and securely standing up (like how ppl have drinking birds on their desks just because they're fun)
1507701
You grab the bottom bulb and the liquid is supposed to seem like its boiling instantly at the top (with the good ones at least). However, these barely accomplish that sought after boiling action. The liquid merely peters out at the top rather than boil.
463114
I don't know, but they weren't what I ordered so haven't looked at them again.
303923
I am not sure, never needed them, but I will look into it and let you know.
244316
I don't knoe I was wondering the same thing but If. U find out. Can u let me knoe
181949
If I knew what the heck that is I would let u know but I have no idea Sorry
1880955
I'm not sure I know what you mean . If you can explain maybe I can help you .
1737245
I don't know. I've wondered what I'll do when they wear out. Please post if you find some:)
680650
I'm not too sure. But it is not clear at all if that is what you are llookig for.
70001
I love them but I haven't thought to check that. I'm going to check that when I get home.
1139623
Why would you even be looking at these to see my review if they serve no purpose? If you do not have anything to say about the product then find something else to do. Thanks
511547
I'm not sure you should check with your doctor My doctor recommended them to me.
126193
They're pendants. If you chose, you could use them as key chains. You simply need to be aware you may get poked by the pointy end. :)
2240728
I have no idea - it may just be a marketing gimmick, I bought them nonetheless
2169928
There is a picture here and on the other few adds to show you the different things you can do with them, I'm not sure what you are asking (if you saw the pictures).
2046692
I don't know because I bought them for a Christmas gift, they are not for me.
1028455
I dont remember mine coming with any info but you can search online and get an idea.
1865890
I would like to help but I am not really sure what you are asking by the way that question is worded.