Custom Alto Ligature with Pressure Plate Set

This is a custom-made, Chinese ligature and pressure plate set from Walt Lee.
 
The pressure plates attach loosely via magnets. Not the most solid connection. There are 11 different pressure plates to experiment and choose from. They offer a selection of different affects on the sound.
 
This ligature and pressure plate set is a cool collectors and educational set, but probably not good enough to be your main playing setup.