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 1998 Arctic Cat 500 4x4 Utility 1999 Arctic Cat 500 4x4 Utility 2000 Arctic Cat 500 4x4 Utility Auto 2000 Arctic Cat 500 4x4 Utility Manual 2001 Arctic Cat 500 4x4 Utility Auto 2001 Arctic Cat 500 4x4 Utility Manual 2002 Arctic Cat 500 4x4 Auto 2002 Arctic Cat 500 4x4 Auto FIS 2002 Arctic Cat 500 4x4 Auto TBX 2002 Arctic Cat 500 4x4 Manual 2002 Arctic Cat 500 4x4 Manual FIS 2003 Arctic Cat 500 4x4 Auto FIS 2003 Arctic Cat 500 4x4 Auto FIS MRP 2003 Arctic Cat 500 4x4 Auto TBX 2003 Arctic Cat 500 4x4 Auto TRV 2003 Arctic Cat 500 4x4 Manual FIS 2003 Arctic Cat 500 4x4 Manual FIS MRP 2004 Arctic Cat 500 4x4 Auto FIS 2004 Arctic Cat 500 4x4 Auto FIS MRP 2004 Arctic Cat 500 4x4 Auto TBX 2004 Arctic Cat 500 4x4 Auto TRV 2004 Arctic Cat 500 4x4 Manual FIS 2004 Arctic Cat 500 4x4 Manual FIS MRP