This instrument is similar to the Soft-Steel Y-String Zither but smaller, and the smaller scaling gives it a very different character. Both instruments employ Y-strings, meaning that each string forks into two strings near one end. This alters the patterns of vibration to help create an unusual tone quality. The uprights at one end are tailpieces which allow the player, by flexing them one way or the other, to bend the pitch of the plucked strings up or down.
A video of this instrument can be found among the demonstrations in this youtube playlist.