... . has the barb: 1 barb, 2 barbs, 3 barbs on each edge6. has working blade: 25gg, ... , 32gg, 36gg, 38gg, 40gg, 42gg 15*18*36*3.5 R222 GF3037gauge working part , TriangularGauge Shank, 15 (shank ... (triangular blade height in Millimeter is 0.57)Nominal Length (in inch), 3 .5 ( needle total length in Millimeter ... edge, 2 triangular felting needles (Guaranteed 100%+High quality+Competitive price+fast shipping)