The SSM compound has been known for its extremely low levels of dust, low noise levels, and long life characteristics. Many consider this the highest grade brake pad for street-type conditions. Very popular amongst car show users and high-end vehicle owners that care very much about maintaining clean wheels and an overall clean look. Part of the Non-Steel Series, Endless uses a Non-Steel Developmental Process. With no steel materials, dust is minimal and rusting is prevented, enabling ease of cleaning wheels (even with water). SSM compound is not aggressive towards the discs.