La Bella SP-41107 Super Polished Bass Strings are made of stainless steel with gauges of 047/068/080/107. These strings combine the punch of stainless steel with the velvety, soft feel of flatwound strings. The basis of these strings is La Bella's Olinto hex core roundwound stainless steel strings, which are polished on special machines to ensure a pleasantly smooth feel. The sound lies between flatwounds and roundwounds. These are standard long scale strings, with all strings measuring 37 inches from the ball end to the wrap.