Single leg to attach directly to a Sonor xylophone, metallophone, or timpani drum - the leg has a screw to attach the resonator box or drum shell. Soprano and tenor-alto instruments require 3 legs each; deep bass instruments require 4 each. All Sonor xylophone and metallophone resonator boxes are equipped with screw-plates for the attachment of the special ST legs. Other brands of Orff instruments do not have the hardware needed to use these legs.
