Handmade Didgeridoo made from exotic woods. This is a concert class instrument with superior sound and superior finish. Over 75 pieces of exotic woods laminated together. Five coat tung oil finish. Overall length is just shy of 80 inches. External measurements for the mouthpiece are an inch and five eights. The internal measurements of the mouthpiece are just over an inch and an eighth. The over all wall thickness is a quarter of an inch. The bell is 4 inches of crossed. First didgeridoo tone rang is in A to E flat. Second Didgeridoo tone is in C. The trumpet tones have quite the range C to G. The link to my YouTube page so you can hear and see the Rainbow Didgeridoo being played.