20" Natural Fiber Buff Pad 5/Cs.A Natural Hair Burnishing Pad With Binder That Is Hard And Aggressive. This Pad Brings Out The Shine Very Well And Has The Ability To Lubricate And Level The Finish Very Fast. For Propane Its Recommended To Use At 2000-3000Rpm For A Hard Highly Durable Finish. For Battery Power It Is Recommended To Use At 1500-2000Rpm For A Hard Highly Durable Finish. For Electric It Is Recommended At 1500 Or More Rpm For A Hard Highly Durable Finish.