Title: They started to bind within two months
Product review: I bought these to dose an aquarium with fertilizer and fill small test tubes. They didn't work out, though. After less than two months they started to become rough and eventually bind. I realize that my application isn't conventional, but I think the issues I had also apply to their intended use.The good:-The markings have held up well, though they are starting to fade. Putting packing tape over the cylinder might be a good way to preserve them, but I haven't tried it.-Fairly high capacity.-The tapered tips lets you tailor them to a certain use.The bad:-Although they started out smooth, that didn't last long. In my case their useful life was only two months while being used every one or two days.-The plungers lock when depressed all the way, which makes extracting something difficult because you have to pop it loose. I don't understand why their designed that way, but if someone knows of a reason for it, then feel free to post a comment.
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