ovsor 100PCS Plastic Disposable Transfer Pipettes, 3ml Calibrated Pipette Dropper for and Science Laboratory

I ordered these for an art project at summer camp. I needed droppers that wouldn’t break in transport, were easy for small campers to operate, and were affordable. These did a great job for my purpose, and I was happy with how easy it was for young children to use them. So far, the droppers seem to be well made, since I didn’t have 30campers with red or blue fingers at the end of the project, so, high marks for that! There were about twice as many in the pack as I needed for this lesson, but I am sure I will find other ways to use the remaining ones. They don’t take up much space, so fit well in the ‘just in case’ box. I’m quite happy with this product, and would buy them again, if needed.

These are pretty good droppers you can use for many different things, they're good size they're easy to use they're versatile and pretty useful

These are so versatile! I really appreciate how many different applications I’ve found for them. Very easy to use and the length makes accessing liquids in large bottles easy.

too small

Fostering a feral young momma cat and her three newborn kittens and was worried momma wasn’t producing enough milk. I tried the little baby bottles but the babes were having difficulty latching on. A cat rescue site suggested pipettes to “dribble” KMR into their mouths until they could figure out suckling. These were a great value, provided just enough suction and allowed me to slowly release milk to the kitten. I didn’t noticed a plastic smell when I opened them. And the packaging lead me to believe they are sterile-no need to pre-wash (but don’t quote me in that). And although they are disposable, I do wash and rinse them out with some soapy water. Just a word of caution: if you are using these to feed baby animals-ALWAYS make sure the little critter is sitting up (held upward) as you do not want them to aspirate on the liquid! I also use these for the little boys o nanny for. No, I don’t feed them with the pipettes! But they love to use them with our art and science projects. Perfect for suctioning up a little vinegar for baking soda reaction activities. The pipettes do not hold much but work wonderfully for what I needed them for. And although the suction is not very strong and liquid WILL trickle out, they serve the purpose effortlessly for feeding kittens.

pipes things right up, not to big not too small and perfectly thick

I was going to return these as I really meant to buy smaller droppers. I thought again and changed my mind since the error was indeed mine. The droppers are nice, not super thin like others I’ve used. These will last a while, I use them for art work so unless they are really soiled or I let them dry dirty I can rinse and reuse. I can always fill the dropper less but you can’t fit more in a smaller dropper. I’m glad I decided to keep these, a great buy for nice quality.

I've purchased these Ovsor brand pippettes a few times now [50pk, 100pk, 300pk]. The quality is excellent, and every single one has been perfect (no splitting or dripping). They're 6.2" long × 1" diameter, with graduated markings. I don't use the markings, but if using clear liquids, they'd be difficult to read. The suction is very good, filling the pippette two-thirds the way (stopping just shy of the bulb). Be careful when using box cutter to open shipping box though. It arrives in an airtight bag. This will definitely be a repurchase & I strongly recommend these.