Made of Implant tested poly vinyl chloride non toxic clear thermo sensitive silliconised material to protect mucosal tissue. Fitted with 15mm connector. Smooth tip with radio opaque line. Graduation by 1 cm and 2cm indiactor mark assisting in positioning of tube with vocal cord. Pilot balloon with one way vavle indicates intra cuff pressure and marked with size for immediate indentification. ET with Murphy eye and high volume low pressure cuff.