Firstly, they are durable and shatterproof. This means they can withstand accidental drops without breaking or shattering, ensuring that the pills inside remain safe and intact.

Secondly, plastic bottles are lightweight and easy to transport. This makes them an ideal choice for shipping and storing large quantities of pills, as they do not add significant weight or take up too much space.

Thirdly, plastic bottles are available in a variety of sizes and shapes, making them versatile enough to accommodate different types of pills. They can also be easily labeled and marked with dosage instructions and other necessary information.

Lastly, plastic bottles used to hold pills are typically made from materials that are resistant to moisture, air, and light. This helps to preserve the shelf life of the medication and keep it in optimal condition until it is consumed.

Overall, the characteristics of plastic bottles used to hold pills make them a practical and efficient choice for the pharmaceutical industry, helping to ensure that medications are stored and transported safely and efficiently.