Blue transparent plastic tubing with a clear plastic laryngeal mask attached. There is an additional fine tube threaded through the blue tubing toward the mask opening.Printed in black ink on blue plastic tube: SIZE / 2.5 / MALLINCKRODT LaryngoSeal TM / Single Use Only 20 - 30kglaryngeal mask airway, brain, archive, england, mallinckrodt, laryngoseal, endotracheal intubation