Our most popular oboe outfit, the Fox Renard Artist Model 330 is a resin (plastic) body instrument with ostanding tone, resonance, intonation and durability. It includes a third octave key, a low Bb vent, silver plated posts, bands, and keys, and teflon tipped stainless steel adjusting screws. The modified conservatory key system includes an Ab-Bb trill key, G#-A trill key, left hand F and of course a F resonance key mechanism. Also, C-D, B-C#, articulated C#, and low B-B# mechanisms are standard. -themanufacturer