West Pharmaceutical Services Incorporated manufactures and sells containment and delivery systems for injectable drugs and healthcare products in the U.S. and internationally. Its Proprietary Products segment offers stoppers and seals for injectable packaging systems, and syringe and cartridge components for injectable drug applications. The Contract-Manufactured Products segment manufactures and (automated) assembles devices used in surgical, diagnostic, ophthalmic, injectable, and other drug delivery systems, as well as consumer products. It serves pharmaceutical and medical device companies. The company was incorporated in 1923 and is headquartered in Exton, PA.