SpringRetainerKeeper, 10 Deg 3/8 1 Grv Lcks w/o Recess +.05 Ht, Valve Lock, Keeper, Retainer Lock, 10 Degree, 7 Degree, Steel Retainer, 1 Groove, Valve Keeper, Valve Keeper Set, Valve Lock Set, Locks, Set of 16 - 10 Degree 3/8" Single Groove Locks w/o Lash Cap Recess +.050" Height, None, Engine Valve Spring Retainer Keeper Kit.