Fits Honda CBR1000RR CRF250R/X CRF450R/450X 2004-2017 for Kawasaki KX250 1988-2013; for Suzuki 2003-2005 RM65 / 100 1986-2001 RM80 2002-2012 RM85/L 1989-2008 RM125 / 250 1987-2017 YZ80 / 85 1984-2017 YZ125/N 1985-2017 YZ250 / 250F 1998-1999 YZ400F. Stainless steel 304 Each plug is made of thstainless steel. Durable and tight. The stainless steel spiral design allows the product to withstand higher pressures, be more durable and maintain better performance during use. Installation is simple.(equipped with the drill bit) Use the provided drill bit to remove the damaged bolt and insert the stainless steel threaded block. This product is ideal for riders who enjoy cross-country motorcycles and endurance bicycles, as it helps to maintain motivation during ride