This innocent-looking but unbelievably cruel bdsm device is my newest invention, I called it string instrument. The body of the instrument is a human slave who is laying under the very thin (1mm) rubber lines and the instrument can be played by pulling the elastic strings out and then let them slam to the slave to play pain chords and melody. Of course the first person who tried it the inventor herself. The pain I felt was so surprisingly intense and maddening especially on my feet and on my nipples that I had to stop Tanita several times. So I can say that this was one of my most painful sessions ever. But it was worth it because I had so many pretty thin red lines on my full body for a couple of weeks that I looked like a tabby.