- Closing tab has one round and one flat wire to ensure that bag is closed securely
- Fold tab over tightly 4 to 5 times when closing
- Volume measurements are approximate
- White, write-on strip makes sample identification easier and more convenient
- Use an ordinary ballpoint pen, pencil, or felt-tip marker to write on white strip
- Paper-like finish eliminates ink smearing and provides surface that will accept a variety of writing instruments
- Sterilized



































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