There are two kinds of material, one is made from 100% silicone, and the other is made from non-toxic PVC. Both of them is no poison and harmless. Suitable for adult children and infant use - Update: 2008-08-08

Made from non-toxic PVC. transparent soft and smooth. Radio opaque line through the length for X-ray visualisation - Update: 2008-08-08

Material: non-toxic PVC, Uncuffed Used in Tracheostomy - Update: 2008-08-08

Made of malleable aluminum covered with plastic sheath Used for assistance intubation - Update: 2008-08-08

Made from clear soft PVC Four kind of connector available with T-type connector, Y-type connector, Cap-cone connector, Plain type connector. Colour coded for size identification - Update: 2008-08-08