American Built Containment Systems specializes in thin gauge thermoformed clamshells and blisters. We have stock sizes of clamshells and blisters as well as stock platforms and tooling to reduce cost and lead times. ABC Systems has dedicated machines for both small and large runs of clamshells and blisters, as well as the printed cards that are used to describe the products to the end user. Most importantly we offer a full turn-key thermoforming solution for clamshells and blisters from the initial design, prototyping, tooling, production, assembly, contract packaging, warehousing, and shipment to the final destination. This paper highlights on few important things we need to know about clamshells and blisters.