A unique system: the Special model can be placed to the left or right of the tailpiece. If you wish to have a lateral chinrest, place the screws to the left of the tailpiece. To have a central chinrest, place the screws to the right of the tailpiece.
Very easy mounting on violin/viola.
It doesn't damage the edges of the instrument.
Universal chinrest feet for violin and viola with a unique reach for 1/4, 1/2, 3/4 and 4/4 violin, up to and including all sizes viola.