West Pharmaceutical Services is a company that manufactures and sells packaging components and delivery systems for injectable drugs and healthcare products internationally. Its Proprietary Products segment offers stoppers and seals for injectable packaging systems and syringe and cartridge components, including custom solutions for the needs of injectable drug applications, as well as administration systems that enhance the safe delivery of drugs through reconstitution, mixing, and transfer technologies. This segment serves biologic, generic, and pharmaceutical drug companies. Its Contract-Manufactured Products segment is involved in the design, manufacture, and automated assembly of components and devices used in surgical, diagnostic, ophthalmic, injectable, and other drug delivery systems, as well as consumer products. This segment serves pharmaceutical, diagnostic, and medical device companies. The company distributes products through its sales force and distribution network, as well as contract sales agents and regional distributors.