AHL 9.48mm O.D. 1.20mm-4.00mm Thick Adjustable Valve Shim Kit for Honda CRF450R CRF450 R 2002-2012 (52pcs) Fit for Honda CRF450X 2005-2009 2012/Honda RVT1000 R RC51 00-06/Honda VTR1000 Super Hawk 98-05/Arctic Cat DVX 400 04-08/Arctic Cat DVX 400 TS 06-07/Polaris Outlaw 500 06-07/Polaris Predator 500 03-07 High quality carburizing steel material to ensure its durability Package included:52pcs;1 shim of each size from 1.2mm to 3.5mm in 0.05 increments,3.5mm to 4.0mm in 0.1 increments High quality with competitive price,satisfy all your valve maintenance needs Quality Assurance!If you are not satisfied with our products,we accept all of the return,replacement or refund requests