Shrink wrappers are protective coverings made from plastic that shrink tightly around products when heat is applied. They are commonly used in packaging to keep items secure, clean, and safe from damage during transportation and storage. The process involves placing the product in a plastic film and then using a heat source to shrink the film around it. These wrappers are popular in various industries, including food, electronics, and consumer goods. They help maintain product freshness and prevent tampering. Shrink wrapping machines are often used in factories to automate the packaging process, improving efficiency and consistency in packaging products like bottles, boxes, and cans.