Transfer Pipette, 3.0ml Graduated, 5.0ml Capacity, Large Bulb, 155mm, Karter Scientific 206H1 (Case of 5000)

Great value, thanks!

I use these for science activities in my preschool. They’re really easy for the kids to manipulate. My only complaint is I only received 80 and it was supposed to be 100.

Vey accurate

Use solvent base chemicals it holds very good

I bought these several years ago for my homeschool chemistry class... aaaaaand I still have most of them. Currently, I’m using them to conduct water tests for my fishtank, and they work good for that. They certainly do suck up water and other types of liquids. One had a giant hole in the side, which was kind of odd. Honestly, there are so many that one damaged one doesn’t really subtract from the value. Of course, In the six years I’ve had them I haven’t pulled them all from the bag, so more could, theoretically, have large, inexplicable holes in them. Overall, they do their thing.

These transfer pipettes from Karter Scientific are nice tools if you need large-scale disposable eye droppers. They're great for moving moderately small amounts of liquid into small bottles or vials. They are NOT, however, the right size to manage anything measured in drops/ml, which was what I'd hoped to achieve. I bought these to work with essential oils, and I can use them to fill my roller bottles. But transferring tiny amounts of essential oil? No. The tip is too large to fit into the essential oil bottle, and it they're simply too large for precision work of any kind. Each of these pipettes is several inches long.I'm keeping the package I ordered, because I'll need to fill my roller bottles with the carrier oil. I'm still looking for a way to dispense and measure essential oils into the mix. I was hoping for medical-size glass pipettes, and got their overweight cousin.

Needed these for some cosmetics DIY projects, but found them useful for lots of other things, too (cooking, controlling dye better than food coloring droppers, cleaning up spilled liquids from a hard to reach spot). They work great and come at a great price. Wish they weren't as flimsy (for cosmetics, I ran through about 10 when piping lip gloss into containers because after about 4 - 5 uses, the gloss would cool down and harden inside the plastic, making it almost unusable. These are disposable, though, so it's what you'd expect. I did use this with warm/hot liquids and it didn't warp or melt, but the quality of the plastic might be a problem if that is your use-case -- I may have just been lucky.

They could be a little easier to squeeze enough to fill completely, I haven't managed that quite yet but for what I paid no complaints. They're a great size for transferring tiny amounts of fragrance oils to the little cup to weigh. I'd be hard pressed to read the measurements on a good day, but I knew that would be the case when I ordered them.

Well packed....useful for what I need them for.