I use them to measure drops of essential oil. I buy my oils in bulk, they don't come with droppers. Great for reducing waste. I sometimes put them in the dishwasher to reuse and they come out fine.
Pros
This item is a pack of 100 transfer pipettes, made of soft, durable polyethylene with a capacity of 3mL, used for essential oils, cosmetics, fragrances, micro liquids and more.