Professional-quality sound and response combined with ease of playing makes the K.GE Hybrid-Academy a great value for students.Synthetic top joint and grenadilla middle joint and bell, full conservatoire systemKeywork includes: semi-automatic octave keys, 3rd octave key, C-D trill keys(x2), C-C# trill key, Ab-Bb trill mechanism, Ab-A trill mechanism, fork F vent key, left hand F key, low C-C# trill mechanism, articulated C# mechanism, low Bb ventExtended F# touch piece and half covered D touch piece for greater comfort.Under-cut tone holes for superior tone quality.