Boomerang resins are engineered to work with lightweight high-speed machines. The Unique ‘Boomerang’ shape is very tolerant of speed and heat, long and flexible, and provides a super thin leading edge. This allows the tool to flow well on uneven surfaces and provide a superior shine very early in the polishing process. Available in 100-3000 grit, Boomerang resins are sold separately. Hook and loop backing lets them mount easily to Hook and Loop pad drivers.