Front and Rear Sintered Brake Pads for Polaris 800 Ranger RZR S EFI Razor 2009 2010 2011 2012 2013 Quantity: 4 Sets (8 pcs) Position: Front and Rear Brake Pad Material: Sintered Sintered brakes last longer, handle the heat of heavy braking better and good for wet weather Higher coefficient of friction, less heat for cooler stops and longer life