This is a pair of new Rear, Left & Right CV axles for a Polaris ATV.They fit the following 4x4 models: 2003-2005 ... Sportsman 400 2006-2007 ... Sportsman 450 2003-2010 ... Sportsman 500 (excluding Touring models) 2003-2005 ... Sportsman 600 2003-2007 ... Sportsman 700 2005-2009 ... Sportsman 800 4x4 & 6x6 (excluding Touring & X2 models) 2005-2007 ..