Each system consists of a round bottom tube containing transport media with a rayon tipped swab, plastic shaft or wire shafted swab secured by a cap and is then packaged in a pouch and sterilized. Modified Amies Gel without charcoal provides excellent survival for a wide range of bacteria and is recommended for use with gram stain. Shelf life is 24 months. Modified Amies Charcoal Gel provides excellent survival for a wide range of bacteria including fastidious organisms such as Neisseria gonorrhea. Shelf life is 24 months. Modified Liquid Stuart's provides excellent recovery in routine bacteriology and is recommended for use with the gram stain and rapid screening methods. Shelf life is 18 months. The Anaerobic Transport System is a self-container, sterile, ready-to-use system which includes a glass tube containing a semi-solid, pre-reduced transport medium. It is intended for maintaining the viability of a wide variety of micro-organisms during transportation for up to 48 hours. The system has an indicator that will turn lavender if the anaerobic condition is compromised. Shelf life is 18 months.