Fin Comb Kit, 13 to 20 Fins per In.

Fin Comb Set, Color Blue, Brown, Pink, Purple, Red, Fins per Inch 13, 15, 16, 17, 18, 20, Insertion Depth 1 in, Length 4 11/16 in, Width 1 3/16 in, Includes (6) Heads (8, 9, 10, 11, 12, 14), Handle