This is a front caliper pair for Yamaha 2003-2004 Yzf R6 and 06-08 R6s. The set includes hardware and is designed to fit the left side of the vehicle. The manufacturer part number is 5SL-2580T-00-00. It is a genuine OEM part that is made to the highest quality standards to ensure optimal performance. This caliper set is perfect for those looking to upgrade or replace their existing calipers.