Oil line cleaning brush kit comes with 9 nylon brushes in 3 different diameters 1/4�, 5/16� and
3/8�. The 1/4� brush is a small stiff brush for feed line holes, 10� long, 2� brush length, kit includes one. The 5/16� and 3/8� brushes are also stiff brushes but for crankshaft holes and valve guides, 12� long, 2-1/2� brush lengths. Kit includes 2 of
5/16� long, 2-1/2� brush lengths. Kit includes 2 of
5/16� diameter size and 6 of 3/8� diameter size. Carded.