The Razors Cult Shima One-Piece Soul Frames are a simple and full replacement to the soul kits that come on Razors Cult or Shima models. Instead of all the bits and pieces being separated, the backslide plates and soulframes are just one full solid piece. They are made with a special glass-reinforced nylon formula that is very durable and made for grinding up against. So wear them out and customize your skates later on again!