We purchased these for accurate measurements for our garden fertilizers, rather than trying to dump a teaspoon out with the household measuring spoons we use in our food. They work really great for that purpose and I would give five stars except for one issue. The measurement markings start to wear off within about two weeks of using them once every other day. So the measuring syringe is rather useless once there are no markings left to measure by. I can use a sharpee to mark the 5/10/15 but smaller increments are just guessing at this point.
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