This conservatoire oboe fingering chart covers every note up to third octave A on the conservatoire system oboe. This is the "international" / "Professional" fingering chart system with no thumbplate. Some fingerings have alternative fingerings to suit each oboists instrument. The guide is laminated for ease of cleaning and keeping it is a good condition. It is very portable due to it folding vertically in 2 places to enable it to fit in a oboe case. All of the diagrams are clear & easy to understand.