Plastic wraps are thin sheets made from materials like polyethylene or PVC that are used to cover and protect food items. They help keep food fresh by creating a barrier against air, moisture, and contaminants. Commonly found in kitchens, plastic wraps are often used to cover bowls, wrap sandwiches, or seal leftovers. These wraps are typically transparent, allowing users to see the contents inside. They come in rolls and can be easily cut to size. While convenient, it's important to note that some plastic wraps are not microwave-safe, so checking the packaging for instructions is essential before use.