What is clamshell packaging?

A clamshell is a one-piece container consisting of 2 halves joined by a hinge area which allows the structure to come together to close. Clamshells are often made of a shaped plastic material, such as polystyrene, polyester, PVC, foam sheets, etc. The material can by made by thermoforming or can be injection molded into the desired shapes. A single piece of material is used for the top and bottom...