This is a special electric bass. The bass was built in 2008 by the music instrument builder Jens Ritter and has the serial number 840. Some critics claim that Jens Ritter is the "Stradivarius" among modern guitar builders. it is a fretless bass and therefore has a special sound. Bridge / String Attachment RMC, Tuners Ritter BA Tuning System, Nut Bone. I wish you a lot of fun rendering and if you have problems with your light settings simply increase the roughness of the body knot by 10% then it's no longer the original lock but it's easier to render.