Retention packaging makes it easy to suspend a product within its outer packaging. This protects it from the shock and impact that a package experiences during shipping.
This packaging type uses flexible plastics to give tension and stability to products of different sizes and shapes, eliminating the need to design die cuts/molding which might require extra tooling.
Since flexible plastics are used, this provides a good visibility of the product, allowing the consumer to identify the product as soon as they open the package.
Retention packaging is commonly used to protect fragile products and electronics. As they do a great job at absorbing shock even after repeated drops.