The Airstream telescopic blowpipe is fully adjustable in length. It comes with an imitation ivory mount. It is also supplied with the Airstream oval mouthpiece. It can extend from about 9″ to 12″ in length.
The rubber blowpipe valve is the most tried and true way to have a good seal when blowing into and taking a breath in the blowpipe. A very economical way to ensuring that you are maximizing the air flow into the bagpipe.