Tracheostomy Tubes Cuffed tube Yes No Fenestrated Yes No Cannula Double Single Usage With inner cannulaWithout inner cannulaBoth Sort by ID (inner cannula in)ID (inner cannula out)ODLength Tracheostomy ID+ ID- OD Length – “ID+” : Internal Diameter with inner cannula in (internal diameter of inner canula).. – “ID-” : Internal Diameter without inner cannula. – “OD ” : Outer Diameter.