Factory Spec severe duty brake pads are made of a sintered bronze compound. Their exclusive high-density mix extends pad life for use in extreme conditions such as sand, mud, water and farm usage. If long life is your main concern, these brake pads are your best choice. They will last much longer than any semi-metallic or organic brake pad on the market. Manufactured by Factory Spec Included is two sets of brake pads, as pictured This is enough to replace the pads on the front calipers Made in China These sintered metal brake pads fit the following models: 2009 Suzuki King Quad 500 4x4 AXi EPS (LT-A500XP) 2011 Suzuki King Quad 500 4x4 AXi (LT-A500X) 2011 Suzuki King Quad 500 4x4 AXi EPS (LT-A500XP) 2012 Suzuki King Quad 500 4x4 AXi (LT-A500X) 2012 Suzuki King Quad 500 4x4 AXi EPS (LT-A500XP) 2013 Suzuki King Quad 500 4x4 AXi (LT-A500X) 2013 Suzuki King Quad 500 4x4 AXi EPS (LT-A500XP) 2014 Suzuki King Quad 500 4x4 AXi (LT-A500X) 2015 Suzuki King Quad 500 4x4 AXi (LT-A500X) 2015 Suzuki King Quad 500 4x4 AXi EPS (LT-A500XP) 2016 Suzuki King Quad 500 4x4 AXi (LT-A500X) 2016 Suzuki King Quad 500 4x4 AXi EPS (LT-A500XP) 2017 Suzuki King Quad 500 4x4 AXi (LT-A500X) 2017 Suzuki King Quad 500 4x4 AXi EPS (LT-A500XP)